Fix php notice

If you're running php 5.4 you'll get a notice when you click 'Like'. e.g.
![notice](https://cloud.githubusercontent.com/assets/1377956/3451712/a8cc3ffc-019e-11e4-9a9d-4185c4a886d1.png)

I've fixed this by removing `and bp_get_activity_type() == "profile_updated"`. I don't think that additional logic is required but I could well be wrong with that :smile: 

As per the previous PR's, the first commit updates the plugin to match what's in the .org repo.