Improve prelude-eval-and-replace
Don't use C-x SPC as it's used in Emacs 24.4 by default for rectangular selection
change default theme
Revert "change default theme"

This reverts commit e64569393e57a55c558b5a547427899b7ed07cc7.
Merge branch 'master' of https://github.com/jilen/prelude
Merge remote-tracking branch 'bbastov/master'