fixed compiler warnings and typo in documentation

fixed documentation

updated documentation, added date pseudo-op

removed debug text

added support for local labels prefixed by "."

Made the "align" pseudo-op work properly

bugfix for incb pseudo op

added the ability to generate export files from a build

added "incb" pseudo-op for including binary files

fixed a bug with calculating line numbers for errors

split out the license into its own text file

fixed mac compiler warnings and a small bug

documented changes in the revision history

converted manual to html

added "msg" operator

improved error handling

binary output and forced absolute addressing implemented

makefile

in-progress commit

organized stuff into header files