Add changeBranch method...

...and some other minor changes...
Start working on packagestranslations
Almost done... ;)
Allow compare two po files statically
Zip files not under version control
Support multiline git comments, extend push
Packages translations done!
New name for packages-translations
Removed debug code
Add new customizable values to sample-customize.php
Move packages configuration to the configuration directory
Remove spurious code
Small change
Handle packages by DB + web interface
Load packages from DB
Add db specs
Add DB configuration to sample-credentials