Wikipedia Education Program/Dashboard/1.0 alpha release

Our alpha release is meant for testing only, please expect data loss and other inconveniences. We've implemented only the most basic features, and welcome feedback on how to make our software better.

Complete In progress Stretch
 * Articles can be from any language or project wiki.  Article links in the interface point to the correct wiki.
 * Interface streamlined to not display training or online help.
 * Wording changed from "courses" and "students" to "programs" and "editors", etc.
 * All users have permissions to create and manage programs.
 * Document everything from "sprint 1" that is still incomplete, and make alpha testers aware of these as shortcomings that we plan to fix.
 * Metrics are pulled from the correct wikis (done in theory but needs smoke testing).
 * When a language has been 100% translated, no English appears in the interface.  There are only a handful of exceptions which would be harder than usual to localize before alpha, for example the "All Programs" cohort title, since cohorts are not designed to be translated. This is a flexible goal, but we should do it as a good faith gesture to respect our translators' time.
 * Write feature specifications for how "course" and "user" relate to multiple wikis.  For example, are we asking users to choose a home wiki?  Until we finish this specification, we'll have non-ideal behavior, e.g. user links in the interface point to the user's English Wikipedia User page.  We should get some ideas about how the interface behavior is non-ideal in order to document it helpfully.
 * Universal Language Selector so that testers can easily change interface language.
 * UX review.
 * Satisfy automated testing and upstream code. Code rot is a serious risk, we're jeopardizing our investment so far and inconveniencing the Wiki Education Foundation until our patches are merged.