Merge pull request #8 from m-mohr/master

Pull Request 19.12.14
Change input-reading, delete validateDateForm

Read input-fields by jQuery now
function validateDateForm is no longer necessary
Delete initialRating of all rating

Specifiying of initalRating is not necessary, but of showSelectedRating
already
Forgot to commit commentView in last commit
Merge pull request #15 from MRieping/master

Change input-Reading, delete initialRating, delete validateDateForm