starting point - Fix bootstrap; I broke it in merging. Disable environment variables...

starting point - Fix bootstrap; I broke it in merging. Disable environment variables because the compiler isn't loaded yet and can't call C ffi functions, and tools.test loads this vocab.
Disable intrinsics in cpu.x86.64 for now, since they invoke the compiler
Fix ##branch renaming to ##branch,
To work on this branch:
./factor -include=math -i=boot.image
./factor -run=listener
USE: compiler USE: tools.test save
enable-optimizer

Error message is now:
T{ vregs-shouldn't-interfere f 409 424 }