rewrite KCLHandler for performance
Merge remote-tracking branch 'refs/remotes/origin/master'

Conflicts:
	kevoree-tools/org.kevoree.tools.aether.framework/src/main/scala/org/kevoree/tools/aether/framework/AetherFramework.scala
	kevoree-tools/org.kevoree.tools.aether.framework/src/main/scala/org/kevoree/tools/aether/framework/JCLContextHandler.scala