adds event editing, part 1
Event edit, part 2
findbugs fixes
updates readme
only admins can edit events, fies autologin bug
improvements to settings
Merge branch 'master' into deploy

Conflicts:
	src/main/java/fi/pss/cleanbeach/ui/MainAppUI.java
fixes bug in location icon handling
adds FB integration. Re-login when in session still doesn't work..
better control over login, registration
Merge branch 'master' into deploy

Conflicts:
	src/main/java/fi/pss/cleanbeach/ui/MainAppUI.java
fixes user create bug
merge