Fix build to work when SSE4.1 isn't available
Add include for errno in mesh/io.cpp which seems to be needed for some configurations
Fix for very recent clang
ubuntu 12.04.4 still doesn't have chi2_contingency
check that __file__ is not pyc which cannot be executed
change BOOST_PP_CAT return value to int
Sign extend Exact values when initializing from narrower types
Use more stable method for arc quantization
Merge branch 'master' of github.com:otherlab/geode
Tweak documentation in unquantize_circle_arcs
AnalyticImplicit: Need to instantiate destructors
Autogenerate a geode/config.h header

Generate a config header means that downstream libraries don't need
to be built with the same set of -D compiler flags.
IN PROGRESS xdress conversion