refresh_session, silent token request, sync call
update callback onError to return authenticationException, update integration tests for acquiretokensilent
refresh_session test update
update test app to add refresh session
acquireTokenSilent negative test, update exception handling, update onError call for sync
Merge branch 'dev' into dev_refresh_session
store cache with/without userid to allow methods that does not have loginhint
change encoding in test app
Return inner exception in sync call
update readme for acquireTokenSilent
update version, readme file for information about acquireTokenSilent, fix exception handling
resolve merge conflict
fix userid check in cache
Merge pull request #193 from MSOpenTech/dev_refresh_session

Force refresh session