I want to bank with TokenLogger

[WorldImpex]

As a user, I want to accumulate my tokens so that I can buy things in MindLogger.

Requirements:

• The user should be able to see a running tally of the tokens received or taken away.
• The user can take those tokens and redeem them for preset rewards.
• The item's name (Says something nice) and the value of that (+5 tokens) is editable by the editor as well as the reward's item name (Gets to drink a coke) and value (25 tokens).
• As the content changes, the user should still retain the running number in the bank account.
• Applets that setup a TokenStore should have their tokens added to

Acceptance Criteria:
Given I am user
When I complete a goal on TokenLogger
Then I can receive tokens for my account

Given I am a user
When I redeem my 10 tokens for a 5 token coke
Then I have 5 tokens left over in my account

Given I am a user
When I am starting a new assessment with 10 from my last assessment tokens in my account
Then I will keep them