Issue #20 Simplify reminder api

Reminder api on events has been reduced to use the usename inherently on the
event, therefore it does not need to be specified in the api call.
Issue #20 added reminder model
Getting the test harness attached

Added spork, guard, database cleaner, and factory girl to get server side test environment
running.

Also, removed some "junk" files that were probably created by rails a while ago that we don't use.
Issue #20 Simple reminder association spec

Add a spec that verifies that the reminder has its associations.

In the process, set up a few factory girl factories.
Issue #20 Introduce reminder mailer

Add a basic mailer capable of sending a message
Add method to reminder for sending a reminder (just using stub data)
Ignore notes.txt for a project notepad