Tweaks to distrib_windows to get it running on a new windows box
Merge branch 'master' of https://github.com/Halide/halide
Add export qualifiers to boundary conditions fns for windows.
Avoid std::min because windows.
Merge branch 'master' of https://github.com/Halide/halide
Add missing EXPORT tag
Merge branch 'master' into recycle_stack

Conflicts:
	test/performance/fft.cpp