Merge pull request #112 from luixxiul/development

minor revision
qanda thumbnails added
Merge pull request #113 from luixxiul/development

qanda thumbnails added
lang attribute introduced, margin between elements
Merge pull request #114 from luixxiul/development

lang attribute introduced, margin between elements
what-is-categorical-imperative excerpt_snippet
excerpt_snippet what-is-categorical-imperative introduced
Merge pull request #115 from luixxiul/development

excerpt_snippet what-is-categorical-imperative introduced
css inlining test
Merge pull request #116 from luixxiul/development

css inlining test, marx-judenfrage
css inlining test, metaphysik
Merge pull request #117 from luixxiul/development

css inlining test, metaphysik
css inlined
Merge branch 'ui' into development

Conflicts:
	decoding-of-aristoteles-metaphysik/index.html
	decoding-of-marx-judenfrage/index.html
Merge pull request #118 from luixxiul/development

css inlined
css inlining canceled
Merge branch 'ui' into development
Merge pull request #119 from luixxiul/development

css inlining canceled
cache.manifest test
Merge branch 'ui' into development