get rid of (now) useless dependency
enable UnusedImport check for checkstyle
Fix code to comply with more strict UnusedImport rules

* don't introduce compile import dependency in case javadoc is only user of imporated class
[AS7-6582] Clear reference to validator factory on undeploy.
AS7-6451 tests
AS7-6451 Config-property, marked with (config-property-ignored = true) annotation or descriptor isn't initialized after deployment
AS7-6565 single jdbc driver deployed inside ear takes name of ear
stabilize intermittent test failures
workaround issues when AS process became stale and FD kicks in only after 30 seconds
[AS7-6382] Manually iterate the addresses assigned to the interfaces for link local addresses.
AS7-6570 fixes for buiding on JDK7

 * upgrade javassist to support jdk7
 * upgrade & mockito & powermock to support jdk7
 * upgrade junit to 4.11 to gain test ordering support
 * fix test ordering