temporary namechange to avoid nameclashes while merging
added authentication for groupmanagement
made authenticationfilter abstract
Merge branch 'master' of ssh://git@github.com/tubav/fiteagle.git

Conflicts:
	delivery/interfaces/src/main/java/org/fiteagle/delivery/rest/fiteagle/AuthenticationFilter.java
	delivery/interfaces/src/main/java/org/fiteagle/delivery/rest/fiteagle/ServletConfig.java
Merge branch 'master' of ssh://github.com/tubav/fiteagle
renamed authentication filter back to normal