Various improvements, comments on update methods about versioning behaviour, added exif and audio aspect support, fixed instances of the broken pattern when dealing with request objects, added some more activity types that do not have sites via public API and added a small delay to the checkin test.
Changed naming format of model constants and fixed fallout.
Merge pull request #255 from gavincornwell/master

Various improvements
Merge pull request #256 from mikeh/master

MOBSDK-695