Enhance sudo editing experience
Merge branch 'master' of github.com:bbatsov/prelude

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
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# the commit.
python.el is now part of Emacs
Enable subword-mode in python-mode
Suggest the use of Emacs 24.3 with Prelude
Merge remote-tracking branch 'upstream/master'