Revert bellows/projects app to its original state

Revert bellows/apps/projects/ng-app.* to their state as of a month ago,
before they were edited to contain the "New Lexicon Project" wizard.
Next commit will convert them to redirect to the new-lexicon-project app
(or other app) based on the current website's appName.
Make "create project" form link to dedicated app

If there is a dedicated "create new (app name) project" app, replace the
Bellows "create new project" form with a link to the appropriate app.

Currently the list of dedicated "create new (app name) project" apps is
hardcoded in the code, with the need to add a new app name by hand from
time to time. Theoretically, we could get it from the server, but that's
more work than it's actually worth.