rename variable
remove @colorBgButtonDefault variable
rename variable @colorFgShy to @colorFgSubtle
remove @colorFgIconHover variable
remove @colorFgIcon variable
rename @colorFgLinkLight variable to @colorFgLinkSubtle
minor variable order
Merge branch 'master' of github.com:cargomedia/CM into issue-1021
Merge pull request #1021 from christopheschwyzer/issue-1021

Improve less variables
Merge pull request #1029 from mariansollmann/issue-1029

Make pages in namespace optional
Merge branch 'master' of github.com:cargomedia/CM into issue-1031