issue #246
update authority change test
Merge pull request #247 from AzureAD/common_tenant

Common tenant
common tenant update to consider end of authority
Merge pull request #248 from AzureAD/common_tenant

common tenant update to consider end of authority
Merge branch 'dev' into version2
Merge branch 'version2' of github.com:AzureAD/azure-activedirectory-library-for-android into version2