Update features to reflect REST API

[hughjazzman]

PR #45 #40 #39
Issues #8 #7 #10 #13 #18 #20 #21 #22 #23 #24 #25 #26 #27 #28 #30
Change the following to reflect REST API. Apply REST API when working on the rest.

• Password reset to a PUT request on user/password
• Register account to POST request on user
• Delete account to DELETE request on user
• Update knewbie ID to PUT request on user/knewbieid

[R-Ramana]

I'll update this to be completed by Milestone 3 instead

[hughjazzman]

Fairly important todo here:

• Change class code to a POST request on a FlaskForm
• Update Knewbie ID to a POST request on a FlaskForm

Currently, these are GET requests which should be idempotent.

[hughjazzman]

The tutorial here will be useful. Changing fully to the RESTful API will require #51 refactoring first.