Add a variable to enable or disable EDTS in erlang-elixir layer
Move documentation material and markdowns to `doc`
Fixes #222 Modeline colors don't quite match up
Remove the mention that 24.3 compatibility is broken

in README.
Enable flycheck for erlang-mode if EDTS is disabled
Merge branch 'develop' (v0.26.3)
Add Javacript layer

- move JavaScript/js2-mode into a contrib layer
- add js2-refactor
- change keybindings to be more spacemacsy
- add a function to define a command prefix for a specific mode
Reformat javascript layer README
Update javascript layer README
Standardize some key bindings for javascript layer
Merge branch 'develop' (v0.27.0)