linkedin/hopscotch — pull request #41 by leedavidr (2013-12-02 17:13:33+00:00)
Title: Changed logic to check for typeof currStepNum. 

Forcing tour to start at step 0 was not working, logic was checking truthiness of variable failing for 0.

code that didn't work properly
```
hopscotch.startTour(tour, 0);
```

Verified tour still resumes properly