Upgraded CKEditor

Previous version couldn't identify Internet Explorer 11
Merge pull request #85 from ddrury/Update_CKEditor

Upgraded CKEditor
#31: Fix call to undefined function regex_quote() on add user page
Merge pull request #87 from magicsunday/issue-31

Fixes #31 call to undefined function regex_quote() on add user page
Updated german translation to fix favorite + bookmark issues
Merge pull request #90 from magicsunday/translation-de

Updated german translation to fix favorite + bookmark issues
Merge remote-tracking branch 'upstream/master'