Update and fix dependencies

Fixes #3 - bower package angular-fire does not exist.

## Updates bower dependencies
 * angular-route 1.2.0-rc.3 -> 1.2.3
 * less 1.5.0 -> 1.5.1
 * angularfire 0.3.1 -> 0.6.0
 * angular-bootstrap 0.7.0 -> 0.10.0

This allows the project to be run in Node-Webkit without any messing about.

```
npm install
bower install
```

Completes with no errors.