Personalization of base SConstruct. ccache, cxx0x, formatting tweaks,
-mtune=native, etc.
Comment spelling fix.
Tweaked extensively so that profile builds would work.

Probably the key is "-static-libgcc". That prevents the "profile timer
expired problem.

Additionally, setting forum_user_handler to false prevents mysql from
screwing with the CFLAGS.
Merge branch 'master' into jz_two

Conflicts:
	SConstruct