FilterData module renamed Context
Removed trailing whitespaces
Minor: added fsi extension to F# language.
Tests updated.
Major: language context parser updated.
Chapel language support added.
Lua language support added.
VHDL language support added.
Additional test added.
Support for text files added: .txt, README, INSTALL etc...
Switched to filterFunctionMap
Template.hs dismissed
Minor --lang-map option renamed.
Code cleanup (hlint).
5.0 released.