- Cleanup gitignore.
- Update SConstruct for clarity and current gcc/g++ standards.
- Merge scons/ccache and scons/distcc since using both effectively
requires different options than the combination of their individual
options.
- Set distcc and ccache to log to /tmp/<wrapper>.log
- Set ccache to use /tmp/ccache_temp as its temp directory to speed
compilation by avoiding useless disk writes.