Merge branch 'development' into 'master'

CHANGELOG.md

Gemfile.lock

app/controllers/admin/thesis_projects_controller.rb

...rollers/course_editions/project_preferences_controller.rb

app/controllers/course_editions/themes_controller.rb

...controllers/course_editions/thesis_projects_controller.rb

app/models/concerns/user_concerns/associatable.rb

app/models/concerns/user_concerns/scopeable.rb

app/models/contract_signature.rb

app/models/project.rb

app/models/research_group.rb

app/models/theme.rb

app/models/theme_interest.rb

app/models/thesis_project.rb

app/models/thesis_project_interest.rb

app/views/admin/course_editions/show/_statistics.html.erb

app/views/admin/dashboard/_thesis_projects.html.erb

app/views/admin/real_themes/show.html.erb

app/views/admin/research_groups/show.html.erb

app/views/admin/themes/index/_table.html.erb