feat(avatars): profile images

Getting there! Feel free to start looking @shane-tomlinson @pdehaan.

Still needs:
- [ ] profile-server client
- [ ] progress indicator screen
- [ ] unit tests for camera view
- [ ] unit tests for cropper widget
- [x] circular overlay on cropper
- [ ] functional tests
According to my local `bower install` and `$ ls -lh | grep jquery-ui`:
```sh
-rw-rw-r--   1 pdehaan  staff   451K Jul 19 05:11 jquery-ui.js
-rw-rw-r--   1 pdehaan  staff   232K Jul 19 05:11 jquery-ui.min.js
```

[insert fat baby joke here]