distutils being invoked from scons; ld is failing with 'libhammer.a: archive has no index, run ranlib to add one'

Cleaned up python bindings interface a bit; now returns strings rather than character codes if appropriate

kindasorta working. all tests (except h_action and h_attr_bool, need typemaps) have passed at one time or another, but some segfault at not-quite-random; h_and, h_epsilon_p, h_end_p, h_ignore, h_not, maybe h_choice seem culprity.

h_sequence, h_choice and HCountedSequence are all having weird issues, but tests are in a workable format now

There's a typemap problem between const uint8_t* and target-language strings, but I can create parsers in python and php.