upgrade aspectj plugin - support for jdk8
updating maven plugins to keep up with the build
fixed test failure
Add supports(Credentials) method to the AuthenticationMetaDataPopulator interface
added catch clause to TGT Action check when TGT is invalid
added test cases
added warning to svc reg impl along with test cases
removed uneeded throws clauses and the clazz name from the log
updated authn manager to call supports on metadata populators.
Merge pull request #742 from Unicon/aspectj-plugin-jdk8

Upgrade aspectj plugin - support for jdk8
Allow Travis to use JDK8 in the build matrix
fixed test failures on jdk8. json field order mismatch
moved webflow action classes over to webapp-support module
#754 - Incorrect labels in russian for next messages:
screen.service.error.header
screen.service.error.message
screen.service.empty.error.message
Merge pull request #755 from danil-zarubin/754

#754 - Incorrect labels in russian for next messages:
Merge pull request #752 from Unicon/jdk8-test-fixes

Fix test failures on JDK8
Merge branch 'master' into inmemory-svcreg-warn
added since flag
Merge branch 'master' into move-webflow-classess
moved other webflow related classes from core