Remove unused optional_decorator
Some cleanups, update for datashape tweak
Starting some tweaks, require name parameter in BlazeFunc(name)
Require a signature in @function decorator
Cleanups, remove @elementwise, @blaze_func
Eliminate the PY kernel type, default to CKERNEL
PEP8 fixes
Remove the jit pass
Remove code for jit pass
Remove blaze.compute.bkernel
Remove OOC and JIT strategy values
Remove dependency on numba and llvmpy

This is temporary, first we strip it down, then we build
it back up based on the updated numba 0.12 architecture.
Small cleanup
Remove unused python_interp
Remove unused pass assemblage
Remove redundant 'ckernel' overload match
Simplify the ckernel pass a bit more
Add pip to conda install
Add unittest2 to the pip list
Make unittest2 install conditional