fix for failing test at build
update adalErrorTest
Merge pull request #142 from MSOpenTech/dev_test_fix

AdalError Test  fix
fix copyright symbol for javadoc warnings
Merge branch 'dev' of github.com:MSOpenTech/azure-activedirectory-library-for-android into dev
webview handling client cert request
negative tests for jws message
tests for challangeResponsebuilder. mock jws response
Merge branch 'dev' into dev_client_cert_challange
add copyright headers. challangeResponse tests