Allow customization of the Admin::Project form and show views

This will allow engines to add new features/settings to Admin::Project
Add geniverse extras as an optional engines

In order to use it, you need to set the environment variable:
PORTAL_FEATURES="geniverse_wordpress geniverse_remote_auth"
Fix and update geniverse engine versions
Fix and migrate GV and GG themes
Add log items export script
Update GG and GV deploy configs
Merge branch 'master' into wip-gv-integration
Update cc_portal_remote_auth to 0.0.3
Hide search filters by default in Geniverse
Merge branch 'master' into wip-gv-integration
Fix another statically defined route
Merge branch 'master' into wip-gv-integration
When logging in via SSO, display an info banner

The banner asks the user to log in, and lets them know they'll be
redirected back to their originating site once they're done.
Merge branch 'master' into wip-gv-integration
Custom signup activation email for Geniverse
Merge branch 'master' into wip-gv-integration
Bump version of cc_portal_wordpress_integration
Merge branch 'master' into wip-gv-integration
Custom school selector instructions for GV
Merge branch 'master' into wip-gv-integration