- if there are changes in the config file, keep them, store
    new config file with ".new" prefix in that case. don't ask 
    me why it took this many changes. all tested well.

* fix: downgrading to old upstream release is OK.

* fix: turkish i18n of install-info is broken and no need to fix it 
anyway (since docs are so english :)

  work because install-info command does not work as expected

* fix: always remove tmprepo, doh

responsibly. :P
* an --at option for add-repo for the position of repo to be inserted
in the list of repos. (we already got it in the API, this is just CLI)

  "application cd"s, let's give the users what they want :)

 - fix: equal must handle comparison with None
 - a small cleanup
 (more fixes to come)

evidenced by #2901 and countless other test suite bugs.

* fix: add sources to componentdb correctly, enabling 
  emerge <component> :)

* improve pisish a little

* fix (attempt): try to finalize api in case of error

command after the other (yes, it will have more features as requested)

packages again.