implement Buider in progress
implement Builder
Merge remote-tracking branch 'origin/dev' into erik

Conflicts:
	gs-concurrency/src/main/java/org/genericsystem/concurrency/Cache.java
	gs-kernel/src/main/java/org/genericsystem/kernel/AbstractVertex.java
	gs-kernel/src/main/java/org/genericsystem/kernel/Context.java