add userPreferences, in progress
update userPref
update userPref with fakeData for now
update userPref working with fakeData for upload
working get/save userPref
add exception
remove not used file and fix failing tests
prepare files for persistence/unit test
formatage/commit before merge
Merge branch 'master' into story17_beta
test commit/ after merge
Merge branch 'story17_beta'