Update planner.py

Added line to install redis plugin.
Added some notes for thought process on redis database.
Added isLoggedIn() to replace a few repeating cookie checks.
Changed login_submit() to use redis.

****Should function just as it did before I modified the file****
Merge pull request #2 from CKnotts/patch-2

Update planner.py
Update planner.py

Changed name of login_route() for @route('/signup') to signup_route().
Added signup_submit(rdb) -- gets/stores signup form data.
Update signup.tpl

Changed form action="/login" to form action="/signup"
Changed submit button value to "Sign Up" from "Log In"
Merge pull request #3 from CKnotts/patch-3

Update planner.py
Merge pull request #4 from CKnotts/patch-4

Update signup.tpl
Added salting of passwords
updated rdb logic and home page