Every format file has some keywords that are passed to the appropriate 
application during the build stage. However some of thes keywords, such
as "patterns" may have Null values (do not exist) or have empty string.
Thus, we add here an exception for Null values of "patterns". If no 
"patterns" keyword exist, than we create a new one with the parameter '-'
This parameter is default and is adviced from the TexLive developers itself.

This is the first alpha for the upcoming 2.3.x releases. This
release adds lots of new features. The most significant ones are
the changes in the package format.

Changes since 2.3.2
-------------------
dfisek (1):
      licenses: Add CeCILL-B license

fatih (136):
      archive: Drop decompress function implemented for Python < 2.6
      archive: Use pyliblzma for (de)compression with lzma
      archive: Import bz2 and gzip modules only when needed
      install: Disable keyboard interrupts while extracting
      archive: Implement a separate class for tar.Z archives
      archive: Add callback parameter to ArchiveTar.unpack_dir
      archive: Allow passing a file-like object to ArchiveTar
      install: Read install.tar.lzma without extracting it
      scripts: Update unpisi to extract using file objects
      archive: Code style fixes
      archive: Refactor Archive{Bzip2,Gzip}.unpack_dir methods
      build: Handle the exception raises when archive type is unknown
      archive: Add support for xz compressed tar archives
      archive: Add support for archive files compressed with lzma/xz
      archive: Make "bz2" an alias for "bzip2"
      util: Use Archive class in uncompress function
      util: Check compression type passed to uncompress
      archive: Guess archive type from file extension
      cli/build: Code style fixes
      build: Lots of code style fixes
      build: Do not hardcode package formats in cli code
      Change package format to use XZ compression
      unpisi: Add support for package format 1.2
      unpisi: Use pisi.package module instead of duplicating extraction code
      unpisi: Extract install.tar* archive into 'install' subdir
      unpisi: Do not fail if 'install' directory already exists
      delta: Code style fixes
      package: Implement common methods to read/create pisi files
      build: Use the methods in package module to reduce code duplication
      package: Use common code to get archive name and format
      package: Add tmp_dir parameter to constructor
      delta: Use new package api to create delta packages
      delta: Remove temporary dir after creating delta packages
      delta: Improve comment
      constants: Remove unused strings
      cli/build: Fix '-F help'
      delta: Add an option to specify the format of delta package
      delta: Extract install archive into a sub-directory
      archive: Fix ArchiveZip adding empty dirs with incorrect paths
      delta: Implement function to create multiple delta packages
      cli/delta: Allow passing multiple old packages
      package: Handle IO errors
      cli: Ignore broken pipe errors
      rng: Add CeCILL-B license
      Move license files to uludag/trunk/doc/en
      delta: Check the names of old and new packages
      tests: Fix the test that overwrites /usr/bin/aclocal
      rng: Add NCSA to the list of licenses
      tests: Correct distro names and versions of example repositories
      tests: Remove tmp dir before running tests
      tests: Lots of fixes
      tests: Fix shelltest
      tests: Add a sample repository tree
      tests: Build repo1
      file: Add support for XZ-compressed files
      file: Use isinstance() instead of type()
      archive: Fix TypeError when adding an empty dir to ZIP archives
      tests: Use the same Package instance when testing add_to_package
      file: Implement is_compressed method and simplify choosemethod
      tree-wide: Use is_compressed instead of hard-coding extensions
      index: Use XZ for compression
      tests: Use uncompressed index files
      file: Set compression level to 9 for XZ
      build: Handle actions.py errors
      tests: Add more packages
      tests: Add repo2 to simulate an updated state of repo1
      tests: Set pisi config before running tests
      tests: Build repo2
      tests: Add new conflict tests
      upgrade: Try to resolve conflicts by upgrading
      tests: Fix InstallDB test
      tests: Add tearDown method for cleanup
      scenarioapi/constants: Use uncompressed index file
      scenarioapi/pspec: Properly add conflicts
      upgrade: Check if the conflicting package is already in the upgrade list
      cli: Do not overwrite the value given by column parameter in formatted_output
      cli: Use the parsed separator in line_format
      actionsapi: Use octal values for all permissions
      AUTHORS: Remove translators
      AUTHORS: Update contributor list
      AUTHORS: Add missing developers and contributors
      actionsapi: Set localstatedir prefix to "/var"
      archive: Comment a seek call as it causes a problem with Python 2.7
      build: Fix typo in path collision check
      specfile: Make package descriptions mandatory again
      build: Generate a debug package for each sub-package
      build: Add dependencies of debug packages
      build: Move build number warning to the end
      installdb: Check if some mandatory tags in metadata.xml exist
      specfile: Replace "current" string in release/version values
      build: Guess WorkDir from archive name
      file: Remove unused gzip enum
      file: Modify File class to accept multiple compression types
      cli/index: Code style fixes and simplifications
      file: Handle all compressed files
      index: Add --compression-types option
      build: Fail if user-defined WorkDir does not exist
      build: Try WorkDir="." for archives with type "binary"
      installdb: Real fix when Package tag is missing
      cli/build: If spec file is not given, fallback to ./pspec.xml
      config: Create directories if we have write access
      install: Do not calculate the sum of cached file twice
      build: Search WorkDir after unpacking sources
      build: Call pkg_src_dir() to get WorkDir path
      config: Just ignore if we can't create the directory
      tests: Replace the path with __file__ in testCanAccessFile
      util: Add support for parsing the upcoming package name format
      build: Change filename format of packages
      util: Add support for parsing the upcoming delta package name format
      build: Change filename format of delta packages
      util: Fix returned value
      index: Add support for new filename format of delta packages
      tree-wide: Fix get_delta() usage
      config: Remove buildno option
      api: Remove the code related to build numbers
      atomicops: Remove build number checks
      tree-wide: Remove --ignore-build-no options
      build: Hold an identifier for the host the package is built on
      cli/listinstalled: Replace --without-buildno with --with-build-host
      installdb,cli/listinstalled: Thinko fix
      installdb: Remove buildno-related stuff
      packagedb: Ignore build numbers in old formats
      history: Remove buildno-related stuff
      specfile: Ignore build numbers
      util: Add function to generate a filename from the package info given
      build: Do not print error/warning counts if they equal to zero
      build: Search old packages in {compiled,debug}_packages_dir too
      build: Create delta packages after build if max_delta_count > 0
      build: Hold a seperate list for new debug packages
      build: Hold a dictionary for delta package lists
      build: Return an empty list instead of None
      build: Tweak info messages
      build: Remove useless info message
      build: Update state file after building all packages
      build: Case fix
      db: Bump cache version

fatih.arslan (5):
      actionsapi/texlivemodules: Modified to work properly with TexLive 2009 version
      actionsapi/texlivemodules: Fixes the behaviour of copying and moving of documentation files
      actionsapi/texlivemodules.py: Fixes logical false result, using shlex for better parsing"
      actionsapi/texlivemodules: Refactor language function, fixes the broken parsing ability
      actionsapi/texlivemodules: patterns have to be null string for change

gkmngrgn (1):
      pisi/actionsapi: Add rubymodules.py

gokcen.eraslan (10):
      actionsapi/cmaketools: Remove Makefile check
      actionsapi/cmaketools: Remove Makefile check from cmaketools.install
      actionsapi: Add KDE4 module to easily compile and install cmake based KDE packages.
      actionsapi: Add qt4 module to easily compile qmake based Qt packages.
      actionsapi: Change importdir, plugindir and translationdir to importsdir, pluginsdir and translationsdir for better integrity
      actionsapi: Revert last commit, use upstream names for importdir, translationdir and plugindir.
      actionsapi: Fix translation dir.
      actionsapi: Add includedir to qt4 module.
      actionsapi: Add Pardus CFLAGS/CXXFLAGS as qmake parameter instead of make parameter.
      Fix copy/paste typo

gokmen.goksel (1):
      unpisi: Add support to extract packages to a target directory

igungor (1):
      l10n: Fix warning in sv.po

onur (2):
      rng: Add new locales
      actionsapi/pisitools: Fix documentation of dolib

ozan.caglayan (4):
      pisi/actionsapi: No need to check the existence of Makefile*
      rng: Add Burmese locale
      actionsapi/kerneltools: Don't show section mismatches
      actionsapi/kerneltools: Refactor

sdalgic (1):
      typo: fix typo in pisi/pisi/cli/blame.py

transifex (4):
      l10n: Updated German (de) translation to 94% (Kaan Akşit)
      l10n: Updated German (de) translation to 94% (Kaan Akşit)
      l10n: Updated Italian (it) translation to 79% (Davide Siciliano)
      l10n: Updated Italian (it) translation to 79% (Davide Siciliano)

Pisi fails when orphaned files found. No need to print this
message for successful builds.

Also remove a debug line.

build_packages does not return a value any more. Code is really hacky
but works.

This is similar to the behaviour before the build number removal except
that it does not search recursively.

The build host should be an empty string for old packages.
"pisi li -b ''" now returns old packages, too.

This renamed parameter is used to filter packages by their build host.

  e.g. pisi li -b localhost

This can be changed using build_host option in pisi.conf. The
default value is "localhost". This can be used to distinguish
buildfarm packages and the packages built by the user.

Also store release numbers instead of build numbers.

The new format is:

    <name>-<source release>-<target release>-<distribution id>-<architecture>.delta.pisi

    e.g. pisi-179-180-p11-x86_64.pisi

Release numbers are used instead of build numbers.

This also adds utility functions to split fields of new filename format.

The new format is:

    <name>-<version>-<release>-<distribution id>-<architecture>.pisi

    e.g. pisi-2.3.2-180-p11-x86_64.pisi

We will not use build numbers any more. This commit removes some of the code
related to build numbers. New pisi will not deal with build numbers.
Before the stable release, all buildno-related code will be removed.

It is now possible to use digits after a dash character (e.g. polkit-qt-1).

Distribution id is a short string to represent the distribution release
(e.g. p11 for Pardus 2011).

Architecture strings cannot start with a digit. This is needed to
distinguish old and new packages.

Otherwise, the result of the test is dependent on the installed
packages.

No need to keep a member for source directory.