Translation strategy option

Option will be available only to previewers and will look like this:

![screen shot 2013-09-04 at 4 05 13 pm](https://f.cloud.github.com/assets/137212/1083617/60f0e34c-159d-11e3-885f-df977f7e72f6.png)

Should wait for tests as always, but I also ran
```shell
bash app_builder_live_test/diff master translation-strategy
```
which makes sure there are no changes in building an app between those two branches