Fixed `homepage` URLs to use standard regex.
Merge branch 'integration' into favorites
Merge branch 'integration' into favorites
Merge branch 'integration' into favorites
Added boolean `favorite` field to `BaseProject` + migration.
Merge branch 'integration' into favorites
Merge branch 'integration' into favorites
Re-deleted old useless functional tests for `projects`.
`projects` admin classes reviewed.
Projects in homepage now filtered by its favorite status.