Updating: changing some double-colon rules into single-colon rules.
Merge pull request #15 from wdblair/master

Fixed a bug in the jsclock documentation, used fixed point function for ...
Updating: preparing for a Debian package
Updating: merging
Updating: adding the first working mydraw-example.
Updating: adding a cairo-example by WB
Updating: adding API for more cairo-functions
Updating: improving contrib/cairo
Updating: tidying up cairo-API
Updating: improving libats-hwxi/teaching/mydraw
Updating: adding some guidelines for contributing to ATS
Updating: preparation for making a Debian package.
Updating: minor fixes.
Updating: fixing a typo
Updating: improving some lib documentation.
Updating: minorly improving.
Updating: minorly reorganizing
Updating: adding examples of some lazy-evaluation
Updating: merging