change db to psql
Merge pull request #1 from csmalin/postgresql

change db to psql
Add dev/test group and tools to gem file.
Merge pull request #2 from csmalin/environment

Add dev/test group and tools to gem file.
basic user model & migration
Merge pull request #3 from csmalin/users

basic user model & migration
add bcrypt-ruby to gem file
unit test validations
Merge pull request #4 from csmalin/users

add bcrypt-ruby to gem file
signup/signin/logout
Merge pull request #5 from csmalin/users

signup/signin/logout
Chats & Messages, migrations & models
Really Basic Nav
Merge pull request #6 from csmalin/navbar

Navbar
Basic Chat window
Merge pull request #7 from csmalin/chat

Basic Chat window