JDK8 compatibility fix

In JDK 8, parameter and method annotations are copied to synthetic bridge methods
MxCache should ignore bridge methods in instrumentation
See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6695379
(cherry picked from commit e672fbd)
Fix scm connection in pom.xml
(cherry picked from commit 5081b5e)
Update README.md
(cherry picked from commit 46a390f)