run-bitcode: fixup headers for other llvm version

This isn't a good solution, but on my stock Ubuntu box these other paths
are what I have after an apt-get llvm-dev.

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
make: add initial makefile

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
call a function defined in run-bitcode from jitted code

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Merge pull request #1 from oleiman/wip-noah

Wip noah