add temporary workaround for cache directory creation
[doc] escape verbatims
restore catchall rule for non-assignment options
fix inconsistency in fontname lookup
sync with Context as of 2013-05-21
sync luatex-fonts files (merged)
new, less brutal workaround for updated-yet-not-completely-satisfying ``lfs.mkdirs()``
[doc] fix verbatim etc. (again...)
Merge pull request #88 from phi-gamma/master

fix request parser; fix name matching bug; better workaround for ``mkdirs()``; sync with latest Contest