partial Git sync implementation

downgraded gradle config

downgraded gradle config

fixed some ugly things

more fixing gradle stuff

fixed more ugly stuff

changed to relative layout

implemented new file opener

implemented new file opener

implemented new file opener

New Branch selector

broke up setupFirstPage() into several private methods

broke up setupFirstPage() into several private methods

broke up setupFirstPage() into several private methods

broke up setupFirstPage() into several private methods

fixed pushing in putRemoteFile

fixed pushing in putRemoteFile

removed unneeded color definition

removed unneeded color definition

this is starting to look good!

removed some unneeded files

done some work on authentication UI

done some work on authentication UI

merged IntelligentTrustManager back to WebDavSynchronizer

checkpoint

checkpoint

checkpoint

removed custom file browser from here to new branch

removed unnecessary white space

made a couple minor modifications

made a couple minor modifications

removed branch lister and added external branch pulling

fixed external branch pulling
Merge branch 'testing' of https://github.com/bssb/mobileorg-android into testing