Disable using the _abcoll stdlib for now

As much as I don't like modifying the standard libraries,
removing the dependence on this particular one helps a lot,
since it (indirectly) imports weakref which will take a while
for us to support.
Rename ThreadState->ThreadGCState
travis run check-pyston
add initial travis blurb to README
Merge pull request #245 from dagar/travis

travis run full ninja check-pyston and update README
Support OSError(arg1, arg2, arg3)
fix up typeRepr handling
[cmake] Have to make sure to pass --whole-archive when dealing with the new libstdlib.a

Otherwise those symbols don't end up getting exported and things
crash if we try to do any inlining, which only happens on the larger
benchmarks or when running in -O mode.
Merge branch 'tmp'
Be able to throw exceptions through the C API

in both directions, from Pyston->CAPI and CAPI->Pyston
Basic support for issubclass() on old style classes
vars(obj).items()
file.flush
Support __getattr__ overloading for old style classes
Old style .__dict__ and .__class__
Some sys-module variables
str.partition
sys.copyright, better old-style __nonzero__
Merge branch 'merge'