fix: Makefile: Only compiler a target .o when -mmcu is supported.
doc: README: Typo.
tests: run-avrtest.sh: Pass extra simulator args in AARGS.
Bump to GitHub.
.svnignore: Ignore more files.
Makefile (clean-mingw32): Clean files from Mingw32 release build.
Provide MinGW32 binaries at SourceForge.
Support -log=FILE for the LOG_XXX commands.
Support -stdout=FILE, -stderr=FILE and -stdin=FILE.
Move more syscall 21 misc handling to host.c.
