Merge pull request #17 from JogoShugh/fixDependencies

- Removed datalayer ref to aga, - Set target to 45 for aga in VSPackage (tested, works)
Update V1 SDK API refs and to prep for OAuth2.
Fix broken csproj merge
Skeleton OAuth2 support. Uses default storage (files from current dir or envars)
default OAuth2 to ON
Stub out connection checking for OAuth2