Code Cleanup and API Changes.

[jfdm]

• Formatting and Documentation fixes.
  • Add inline documentation to all modules to indicate natural sections.
  • Formatted verbose type signatures to be more readable.
  • Added module documentation.
• Changes to Lightyear Public API.
  • Added *~ to gitignore.
  • Lightyear now exports Control.Monad.Identiy.
  • Added a lightyear module to handle exportation of Lightyear Core, such that consumers of Lightyear must import Lightyear then the bounded parser of their choice. For example:

module MyParser

import Lightyear
import Lightyear.Strings