Merge pull request #50 from moul/patch-1

Update package.json
/adminundefined on login form submit
deprecate model.single. use model.formage.is_single
Merge remote-tracking branch 'origin/master'

Conflicts:
	README.md
	example/models/config.js
	lib/MongooseAdmin.js
Merge remote-tracking branch 'origin/master'
resorting and deleting ArrayField