Added /api/ui/skin as a global admin endpoint
Merge branch 'master' into skinning
Misc fixes
Added sections and subsection for LESS file
Merge branch 'master' into skinning
Removed timeout
Merge pull request #447 from nicolaasmatthijs/skinning

UI skinning
Sort UI Skin sections
Simpler sort comparator for sorting skin sections.
Documentation modifications
Fixed some docs