fix tests
event administration
improve and fix unit tests
use template injection for event data
event management UI
JDBi require getters to access bean attributes.
simpler and cleaner null-check implementation
Merge remote-tracking branch 'refs/remotes/origin/refactor' into system-properties

Conflicts:
	app/index.html
	src/main/java/org/breizhjug/cfp/Index.java
FIX javascripts imports