Translation UX/Design feedback 4

The goal of this round was to test:
 * The prototype for a translation homepage
 * The current implementation of the translate editor

Test with User #55 on 7 Jan
The user is a Hebrew speaker.

Test 1: Homepage

 * 00:55: The first element to cll the user attention is the sign-up form.
 * 01:00: The user understands how to disable the default selection for languages and how to add more.
 * 02:10: When the user is asked to correct a translation, the search bar is immediately identified for the purpose.
 * 02:50: The user finds it clear how to become a translator.
 * 03:28: When asked about the list of projects, the user comment they look like placeholders.
 * 03:40: The user discovers the "translate" and "proofread" actions but not immediately, and finds the progress bars helpful.