Backport some things from develop-frontend.
Better template partials implementation
Change templates to use the new partial implementation
Merge branch 'feature/issue-551-better-client-side-template-partials' into develop-frontend
Backport go_api changes.
Merge branch 'feature/issue-549-backport-some-stuff' into develop
Merge branch 'develop' into develop-frontend
Expose routers in Go API.
Merge branch 'develop' into develop-frontend
Merge branch 'develop-frontend' into feature/issue-552-hook-up-wizard-keywords