Added lambda parsing rules.

Stubbed out the adapters.
Merge branch 'master' into develop
Merge branch 'develop' into java8

Conflicts:
	src/main/java/com/github/antlrjavaparser/JavaParser.java
Modified test case to use proper parse class.

Upgraded antlr version.
Added default and static interface methods
Added MethodReference support

Also added additionBound support for Interface & Interface.
Merge branch 'java8' into develop
Merge branch 'develop'