work on Login issues. No resolution in sight.

[NathanBland]

Need more eyes on.

Also included in this commit:

• Added deps
  • connect-ensure-login
  • connect-mongo
  • express-session
  • lodash
  • Added to fix internal issue with connect-mongo. Not directly used by the project.
• username field fix
  • username is actually saved to database now. This is actually more of a fix than the previous pull was.
• modular route design
  • moved some things around to eventually help structure more complex logic for things like dashboard and profile.