Merge pull request #11 from securekey/sk-device-auth-int

Sk device auth int
fixes for pull #13
Merge branch 'access-token-int' of github.com:securekey/openmidaas-android-lib into persistence-fixes
Merge pull request #13 from securekey/access-token-int

Access token int
Merge branch 'master' of github.com:securekey/openmidaas-android-lib into persistence-fixes
Merge pull request #17 from securekey/persistence-fixes

Persistence fixes
Merge remote-tracking branch 'libupstream/master' into phone-verification
Removed extra function that was redundant