Replace GHCi :! command with ::
Motivation
Typing :!
takes alot of time and does not just roll off the fingers. This command is very important and is repeated alot, so it should be fast and easy.
Proposal
Change :!
to ::
. This is a very simple and effective change. It also makes more sense to type ::
since it's a command within a command. ::
is not currently assigned to anything.