Installing global packages needs syspip
Ensure grep installed as grep, not ggrep
Fully-qualify the wkhtmltopdf formula
Use new repository name for brew-cask
Make sure to *really* override system grep
Don't erase the entire cache

Just clean out stuff that aren't versioned
Merge commit 'ad91e79585f764e779470f19dbb1c485c62fd36c'

Conflicts:
	bashrc
	bin/brew-install