Merge branch 'fix/project_assmebly' into 'develop'

src/core/models/assemblies.py

src/core/models/badges.py

src/core/models/base_managers.py

src/core/models/rooms.py

src/core/models/tags.py

src/plainui/jinja2/plainui/assembly.html

src/plainui/jinja2/plainui/project.html.j2

src/plainui/tests/test_views.py

src/plainui/urls.py

src/plainui/views/assemblies.py

src/plainui/views/projects.py