Fixing missing validation (required) of userOptions

Additional question: Are there any reasons, why ``required="required"`` is missing in ``textOptionType.tpl``, etc.?
Added content pattern
Added missing refresh of user ranks
Fixes first parameter of UserProfileAction in event listener
Fixes decline button link in disclaimer.tpl
Removed static signature cache
Merge branch 'master' of github.com:WoltLab/com.woltlab.wcf.user
Fix some issues with Notifications in UserPanel

Closes #202
Added missing language variable
Merge branch 'master' of github.com:WoltLab/com.woltlab.wcf.user
Small optimization
Removed disable function for own user

Fixes #207
Merge pull request #206 from Kiv4h/patch-1

Fixing missing validation (required) of userOptions
Added min/max values

Closes #
Improve link to ACP