optimizer istring hashing
Merge pull request #5 from lukewagner/master

Two minor tweaks
Merge branch 'master' of github.com:kripken/cashew

Conflicts:
	parser.h
MSVC fixes, see emscripten #3087
add getInteger method
more MSVC fixes from emscripten
parse hex numbers manually
fix bug with extra call to visitPost
emit shorthand for empty functions, like uglify