Removed sourceMappingURL

Every request throws an error because of this non existent file, when running in development mode. Removing that line saves one request.
Merge pull request #1730 from SoftCreatR/patch-5

Remove sourceMappingURL for head.js
Fixed typo
Fixed typo
Fixed permission check
Merge pull request #1735 from SoftCreatR/patch-8

Fix typo
Move weeks-/days of week-related methods to DateUtil
Fixed HTML syntax issue
Add overlapping marker spiderfier
Updating minified JavaScript files
Small style optimization
Merge branch '2.0' of github.com:WoltLab/WCF into 2.0
Backporting changes from WCF 2.1
Implemented 3rd party branding guidelines
Preparing release 2.0.7
Fixed update instructions
Fixed building of update nodes
Fixed my lovely WCF version
Reverted previous changes, it does cause more problems that it solves
Fix for Firefox failing to encode square brackets in URLs