started the new structure for the chapter
Upgrading Processing exercises
Merge branch 'master' of github.com:qgis/QGIS-Documentation
Minor fixes to Processing
Processing projects upgraded
restructured chapter plugins
Merge branch 'master' of github.com:qgis/QGIS-Documentation
Typos in Processing man
Merge branch 'master' of github.com:qgis/QGIS-Documentation
Typos and notes in Processing > interpolation
Typos and notes on Processing>Interpolation_cross
Fixed reprojection issue
Warnings added for unfinished chapters
Added informations about the new 'about' metadata field
Merge branch 'master' of github.com:qgis/QGIS-Documentation
remove all non used po files from master
User Manual Screenshoots - Vector Properties - Style Menu
User Manual Screenshoots - Configuration
User Manual Screenshoots - Plugins
Merge pull request #211 from SrNetoChan/master

New screenshots for 2.2 User Manual