Adding companion object to ExceptionMatchers for easy importing
better display for Map and Set differences when using equality

Conflicts:
	tests/src/test/scala/org/specs2/matcher/AnyMatchersSpec.scala
	tests/src/test/scala/org/specs2/runner/TestInterfaceRunnerSpec.scala
removed warnings
removed more warnings - with macros
removed unused imports in common
removed unused warning in core
removed unused imports in core specs
remove unused imports in tests
removed more unused import warnings
added disjunction matchers

Conflicts:
	guide/src/test/scala/org/specs2/guide/MatcherCards.scala
removed an unused specification
removed a position warning