Add R logo to readme and fix ruby
Missing `:defer t` for `ruby-test-mode ` in ruby layer
Make `<escape>` quit as much as it possibly can
should be pyvenv instead of pyenv
Fix alphabetical sorting of packages and extensions

Packages and extensions were not initialized in the right order.
Fixes #243 SPC s c does not unhighlight
Fixes #237 Spacemacs finds orphan packages every time

Occurred on OS X because of a critical bug in spacemacs
which prevented emacs from effectively deleting the
files
Fixes #236 custom ex-command and M-x command key

New variable: dotspacemacs-command-key
Fixes #239 no binding for magit-goto-next-section
Update magit documentation
Fix custom evil-ex bindings in insert state
Fix #223 Changing buffers causes periodic recentering
Fixes #220 missing description of commands in guide-key
Merge branch 'develop' (v0.29.0)