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.