Make "C-x C-m" a true alias for M-x by binding it to smex.
Merge pull request #373 from benol/patch-1

Make "C-x C-m" a true alias for M-x by binding it to smex.
Merge remote-tracking branch 'bbatsov/master' into bbatsov-master
Ignore .cask
Merge branch 'master' of github.com:bbatsov/prelude

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Merge remote-tracking branch 'bbatsov/master' into bbatsov-master