changes for enrolled courses
user created courses in user doc
login api : responding with user document
change password
create, update course
enroll functionality
minor changes
Merge branch 'master' of github.com:amitdotpatel/knowledgestoreapi into fb-login

Conflicts:
	README.md
	config/config.js
	config/routes.js
	controllers/users.js
passport-local and passport-facebook login enabled.