Added shortcuts setting that will be either true or false
Only enable shortcuts if the option is set to true
added dist files
Merge branch 'turn-off-shortcuts' of github.com:littlebigbot/summernote into littlebigbot-turn-off-shortcuts

Conflicts:
	dist/summernote.js
	dist/summernote.min.js
Merge branch 'littlebigbot-turn-off-shortcuts' into develop