Fixed update of size in folders when browsing down and up through new folders in servers
Added depth parameters to ervery PROPFIND method
Merge pull request #278 from owncloud/fix_synchronization_after_addition_of_infinite_propfind_in_server

Added depth parameters to ervery PROPFIND method
Merge branch 'develop' into refresh_folder_contents_when_browsed_into
Disable eTag as a criteria for synchronization of file contents
Enforced check of local modification date when synchronizing file contents to avoid problems with apps triggering a wrong FileObserver#CLOSE_WRITE event
Check changes in eTag of folders BEFORE requesting their list of contents