Updated emacs-custom; mostly formatting
install_functions: Magit version 1.2.1
install_functions: add /usr/local/sbin to path

For Homebrew on OS X
bin/clj: launch with lein classpath when appropriate
bin/clj: default to Clojure 1.7.0-alpha4
Emacs/CIDER: refresh loads tools.namespace first
Emacs/CIDER: eval-sexp-at-point-in-repl
Emacs: org-babel-copy
Emacs: replace-c-style-escapes
Emacs: enable hs-minor-mode (hideshow) in Clojure buffers
Emacs: add evil-numbers.el to local elisp code