[ADD] Dropbox librairies
[ADD] Dopbox connection at start up
[FIX] chage keys to fit with new drop box app
[FIX] Package name
[ADD] Model subPackage
[ADD] Test file for HomeBank datas in XML
Merge remote-tracking branch 'origin/feature/GUI' into feature/Interface_DataFile_for_HomeBank

Conflicts:
	.gitignore
Merge remote-tracking branch 'origin/feature/Interface_DataFile_for_HomeBank' into feature/GUI

Conflicts:
	bin/AndroidManifest.xml