Switch to ruby-mode on .rake, .gemspec and Gemfile
Use optional env variable EMACS_LIVE_DIR to set emacs-user-directory.

I use this to have Emacs Live configured under a special user, say,
overtone. Then, from bash, I can run Emacs-Live as follows:
$ export EMACS_LIVE_DIR=~/../overtone/.emacs.d
$ emacs -u overtone
Merge pull request #83 from namin/init-dir

Use optional env variable EMACS_LIVE_DIR to set emacs-user-directory.
update dependencies
Merge pull request #82 from balinterdi/extend-list-of-ruby-mode-extensions

Switch to ruby-mode on .rake, .gemspec and Gemfile
Add git-gutter mode
add some default bindings for git gutter mode
modify git-gutter settings
add *nrepl-result* buffers to popwin managed list
teach live-paredit-reindent-defun to work in top-level comments and strings.
update nrepl dependency
update dependencies
merge old stashes
update popwin list
move git-gutter colouring to cyberpunk theme
Fix bug introduced in popwin config via accidental nested lists
honour ansi colour character escapes
unify grey colour in cyberpunk theme
update git gutter and enable by default (always showing gutter)
minor tweakes to git-gutter config