Remove todo and update gitignore for mac files.

.gitignore

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+.DS_Store
 database/default-content.sql
 vendor
 node_modules

TODO.md

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-# To Do
-
-- [ ] Need to create an agent to send data
-- [ ] Need to create api endpoint to handle request
-- [ ] Need a new table for accounts
- - Users can belong to accounts
-
-## How will authentication work?
-JWT or Oauth based tokens
-
-## Lightweight agent
-What data will the agent need to send:
- 1. Gather user data
- 2. Account id
- 3. Site id
-
-The agent should be availableas a simple script.
-
-## API Endpoints
-
-```
-/api/webhook
-```
-This will receive a JSON payload from the agent
-It will parse the payload to store the data for later display
-
-```
-/api/dataset/{account_id}/{site_id}
-```
-This will provide all metrics to allow displaying
-information about the account.:w
-
-```
-/api/site-list/{account_id}
-```
-This will provide a list of sites for a given account.
-Each account can have unlimited sites. Each site has an id.