Revert "Add Guice example"

This reverts commit e3009850c7ae3cd5ca675eef5dc03a1a5647e462.

Conflicts:
	org.jrebirth/core/pom.xml
Revert "Add a Factory to let the developer define how components are instantiated"

This reverts commit ac11e6e176d0943d71908ffd20df029afdc74caa.