Add login/sign-up buttons and some styles

Hey Chris,

After working on getting postgres to work for about 2 hours this morning I tried changing the db in my dev environment to sqlite3 (what I was using) and it worked well. I made some changes to basic stuff, styles, adding buttons, etc. 

After making some changes I changed my gemfile and database.yml back to postgres and committed. Let me know if my repo works for you on your dev environment now. I am hoping it does.