add segmentio calls to identify module on stateChangeStart

@seanbrookes /cc: @anthonyettinger 
We have lodash available, might be more readable and easier to main if we put the blacklist in an array:

```
    var pages = ['login', 'register', 'home'];

    if ( !_.contains(pages, next.name) ) {
      //ok to move on
    }
```