removed  unused cruft
improved calling plugin functions with optional keyword args
returned plugin functions in mathutils.py to not need _larch keyword arg
improved unit testing infrastructure
added unit tests for calling plugin functions
provisional fix to inputText for better comment stripping

caution -- unit tests not in place, and need work
updated unit tests... not everything passing yet
add .h5 to .gitignore
fix bug for '#end*'
updated all unit tests
put chi_ interpolation back in xftf_prep
doc patch for minimize in re tuple args (from BR)
improved (I belive) logo layout