Working JAX-RS Jersey Servlet Java & Login/Registration

# Java
- connection to `proj-309-M14.cs.iastate.edu/REST/app`
- working uris:
  - `/login` - Authenticates and logs in from database, takes in username and password (authBean)
  - `/createUsr` - Creates user from database, takes in username, password, and email (userBean)

# Javascript
 - Login and Register functionality
 - Added MPD stream info to New Connections in the Profile Modal
 - Toggleable visibility in New Connections
In the future, this should have all of the stuff for an MPD connection and not the things that are already in the AuthBean. i.e. the mpdHost, mpdPort, mpdPass, streamHost, streamPort, streamSuffix.