Merge pull request #6 from amitaid/zelig

Zelig
Quasiquote changes, Let*, Expand-process change.
Expand changes, tester file.
Fixed test results, quasiquote, reader
light changes
Quasiquote expansions
Lots of fixes to support new tester file
Changes to the reader hex char and quasiquote.
pulled all the information from the master branch. added basic support for debruijn, bounded/Param/Free variables.
pulled all the information from the master branch. added basic support for debruijn, bounded/Param/Free variables.