Merge pull request #38 from bbarker/master

Started work on portable makefile
Updating: adding minimal Makefile support for generating C code from ATS source
Updating: reorganizing some DOCUGEN-related files
Updating: improving DOCUGEN for atscntrb
Updating: improving DOUGEN for atscntrb
Updating: improving doc/PROJECT/SMALL/file-packing
Updating: file-packing -> file-packedit
Updating: PROJECT/file-packedit -> utils/packedit
further work on portable Makefile; removed symlink for portability
moved out atsmake-port*
reorganizing