numeric cmp in bytecode #76
numcmp jit

Note that SSE cmp via ucomisd needs other jump ops, than non-SSE cmp:
iop: jl, jg, jle, jge, je, jne for normal cmp comparisons,
xop: jb, jbe, jae, ja, je, jne for SSE ucomisd comparisons.

TODO: optimize true/false with less jumps
travis: add osx (beta)
3rd/libuv: remove defunct --disable-dtrace, update 1.0 conf fix

deleted upstream