improvements to sandbox files

created a `sql` command to help with running `bin/db`:
	will automatically do `make tunnels` beforehand
	provides aliases for most common database names so I don't have to remember them
	-
fixed `ls` so it doesn't do those hideous colors any more
added a command to bounce the sandbox for me
	(although I still need to figure out a way to do it without it asking which interface to bind to)
	-
finally made `checktabs` capable of only checking files modified in Git