base.html:
- don't load repository_filters

models.py:
- added Project model method get_user_permissions

repository_filters.py:
- remove user_project tag filter and add get_user_permissions filter

view_projects.html:
- change dashboard to show user project permissions instead of project stats (since the stats would have to be re-calculated based on user's site permissions)
add guardian permission_required decorator to edit_project view, remove edit_project link from all templates except view_project.html
views.py:
- remove unused subjects var from view_project view
- add guardian decorator permission_required to view_subjects

view_project_subjects.html:
- add permission checks for add and edit subject links
views.py:
- add guardian decorator permission_required to view_subject
- make sure subject_id belongs to project_id

Templates:
- update templates using 'view_subject' route to include the project_id argument

view_subject.html:
- add permission checks for add and edit subject links
Merge branch 'feature-object-permissions' of https://github.com/whitews/ReFlow into feature-object-permissions