fix colour variables
fix CapitalizationInSelector warnings
fix PlaceholderInExtend warnings
run scss-lint as part of the build
cleanup
dokuwiki tagblurp
pin Sass at previous release (3.3.14)

as the 3.4.x branch is incompatible with scss-lint
 see: causes/scss-lint#218
move htmlproof to build phase
regenerate css
regenerate tags
Merge pull request #4 from GeoDienstenCentrum/sass_style_fixes

Sass style fixes