bug fixes (#12), Gemfile grouping, subdir feature (#13) and css cleanup#47

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stbuehler wants to merge 2 commits intophusion:masterfrom stbuehler:master

+31-52

Commits on Dec 15, 2013

fix path handling for subdir mounting (fixes phusion#13 )
stbuehler
committed
css fixes: typo, duplicates, pre/code should be visible in preview too, remove font for comments
stbuehler
committed