Moving src/spAn -> src/tools.
Editing manual to reflect SpAn -> Tools change.
Moving tools/ to scripts/
Updating TODO lists.
Removing doc/notes/tools files
Merge branch 'devel' into files
Cleaning up makefile, python scripts.
Editing src/config.mk and tools/patterns.mk
Changing makefile for ChainMaker program
Cleaning unit tests and makefiles
Edit makefiles to clean files generated by tests
Adding bld/README
Updating documentation.
Combining src/ and bld/ makefiles for tests