new qt gui
added DriveModel. just skeleton.
refactored exception handling
removing redundant header parameter in Feed
using DataStream instead of Receiveable
refactored old GDoc API into v1 namespace. using v2 namespace for new Google Drive API
added code to fetch all folders
Added Query() helper to Feed. and common URI header
changed to store parent IDs
showing in qt model, but no child
can show tree now, but still has issues
fixing the problems with multiple parent
show files now. working good.
added ui on the right. no logic yet
UT compile fixes