PISI - Packages Installed Succesfully as Intended

PISI is a new package manager implemented in python for the PARDUS
distribution.

Main features

 - Implemented in python.
 - All specification and intermediate data is in an XML format.
 - Fast database access implemented with berkeley DB.
 - Integrates both low-level and high-level package operations.
 - Efficient and small
 - Framework approach to build applications and tools upon
 - Comprehensive CLI and a user-friendly qt-based GUI
 - Extremely simple package construction
