activity_spec fixed by adding day presence true to activity model
fixed authentication_spec, see comments in authentication_spec.rb
navbar_spec fixed, see comments in navbar_spec.rb
cohorts_controller_spec and dashboard_controller_spec fixed by setting valid admin password for set_valid_auth in auth_helper.rb
prep_controller_spec fixed, see comments in prep_controller_spec.rb
students_controller_spec fixed by fixing app/views/admin/students/index.html.slim
home_controller_spec fixed, see comments in home_controller_spec.rb
Merge pull request #71 from eubenesa/bug-fix/99_fix_broken_rspec_tests

Bug fix/99 fix broken rspec tests