Merge pull request #29 from bjpe/curry-highlighting

Added highlighting for Curry language
Bump blaze-html upper bound to allow 0.6.

I've tested that the package builds under blaze-html-0.6.  I'm
not sure how best to conduct tests to make sure the behavior hasn't changed.

See https://github.com/jaspervdj/blaze-html/issues/78 for an
explanation of what changed in blaze-html.
Revert "LaTeX output:  Use \char13 and \char18 for ' and `."

This reverts commit 0070f7a259eec69dbbf6a44dc536f251cb31d16c.
This solution was not robust.  Use upquote package instead.
Version bump to 0.5.3.5.
Removed Highlight.hs from extra-files.
Version bump to 0.5.3.6.
Updated changelog.
Mention Julia in README.
Updated xml descriptions from kate repository.
Updated changelog.
Added Curry to cabal file.
Updated changelog.
Version bump to 0.5.3.7.
Added support for rust.
Updated changelog version 0.5.3.8.