Endpoints and if statements

@constantx 

- Add comments
- Only get game stream if within game time limits (< 15 min before; < 3 hours from game start)
- Update schedule & view:

```
"nfl": {
  "2014-01-01": {      // Game Date
    "2014010100": {    // Game Date + ID
      hTeam            // Game Info
      ..
```