file browser dialog with working breadcrumbs
clicking a directory in file browser now takes you there
file picker now works and returns the absolute filepath of a selected file as a string
Merge pull request #711 from nickavv/parachute

File Picker box
Merge remote-tracking branch 'upstream/master' into hamster
More string changes to data walk
Nuked all iSENSE/old-API objects, removed all NetworkOnMainThreadExceptions from Data Collector
Finished fixing lint warning
Merge remote-tracking branch 'sidepool/ms694' into hamster
All ready to push new beta apks