Merge pull request #3 from Nordran/working

Merging Nordran/working into master
Merge pull request #4 from Nordran/working

Merging Nordran/working into master
Registration is saving to database now
Merge remote-tracking branch 'origin/master'

Conflicts:
	webapp/src/main/java/ru/kpfu/quantum/spring/controller/IndexController.java
	webapp/src/main/java/ru/kpfu/quantum/spring/controller/WorkingController.java
registration was redesigned
server-side validation was added
validation messages are beautiful now
Merge branch 'registration'
fixed bug with data directory
Uniqueness is validated now
registration confirmation is sent now
Invite code is generated now. Admin page was added. Invite sending wass implemented
code is checked in registration now. default url is set to http://localhost:8080
editor
Invite is marked as used now
Merge branch 'codeAndAdmin'
No validation errors implementation
Merge branch 'passwordRemind'
final pages was improved
passwordRemind is validated now