Merge internal branch to public branch.
Massive refactoring
+ Account Content Provider
+ Operations Content Provider
+ Unique Service for batch actions
+ Possibility to retry an action
+ Favorites
Update license header
Merge remote-tracking branch 'parent/1.2-dev' into 1.2-dev
Intgeration with Local file manager.
Merge remote-tracking branch 'parent/1.2-dev' into 1.2-dev
Merge pull request #97 from jmpascal/1.2-dev

Initial commit for 1.2