lhs2TeX-hl 0.1.1.1 Released

The most important changes  are:
1. Added a filter for rewrite rules that aren’t “lhs2TeX safe”, e.g. format () = ...;
2. I hardcoded the default formatting rules for several of lhs2TeX defaults, including but not limited to ->, <- and =>. This is not a desirable solution but it suits my purposes.