emit switches in relooper
do not emit switches for very sparse/large switch values
warn on unswitchified switches
enable test_bigswitch everywhere; closes #781
tweak switch heuristics
tweak switch parameter some more
consider range and not just absolute value for using switches
tighten switch heuristics
flatten switches in outliner
disable test_bigswitch in most modes, needs bigger stack size
fix test_glut_touchevents
Fix python spawn scripts on Windows when the emscripten path contains spaces, like C:\Program Files\emscripten.
Merge pull request #1548 from waywardmonkeys/missing-checks-unistd-misc

Missing checks unistd misc
EM_ASM option for nicer inline assembly
keep MEMFS files as typed arrays until we need them to be flexible
own the subarrays created by file preloading, to avoid a copy
do not fail when mmaping a MEMFS.CONTENT_FIXED
refactor DataRequest to shrink preloading-generated code
fixed server down test
vacuum before outlining, for consistency