Fixed warnings from cl.h on 64 bit target
Lowered version requirement for standard CMake package on Ubuntu
Merge branch 'master' of https://github.com/halide/Halide
Added overloads of realize to enable passing target without all 4 sizes
Passed Target instance to compile_* and realize
Added more overloads to support default Target argument
Removed debugging code
Reverted attempt to fix warnings re: stdcall ignored, breaks on windows
Freeze a pnacl version that is known to work.
Fix for trunk llvm removing a method
Merge pull request #218 from dsharlet-intel/master

Adding target parameters to the tests/apps
JIT tests with explicit targets use HL_JIT_TARGET

They were using HL_TARGET, which is supposed to
just control static compilation now.
Fix missing return value in tracing test.
Merge branch 'master' of github.com:halide/Halide
Header fix for trunk llvm.
Remove all use of stacksave/stackrestore intrinsics

They seemed to be tripping up NaCl. I've been burned by them too many times
now. Replaced them all with allocas at the function entrypoint.
Don't use inline assembly when compiling for NaCl.