This commits addresses usability and interactions with the UI:
When the user clicks on the arrow to move an user, the arrow changes to a spinning signifier to indicate that the the process has started.
After clicking on the arrow an overlay div goes over the whole UI to avoid fast clicking
Moved success/error messages to be dismissible alert messages
Changed the location of success/error messages within the list instead of above them
Merge branch 'develop' into feature/post_release_fixes

Conflicts:
	add_people/templates/add_people/_section_classlist.html
	add_people/templates/add_people/_section_userlist.html
	add_people/templates/add_people/section_details.html
Disable delete popup buttons while the member is been removed from section
Merge branch 'develop' into feature/post_release_fixes

Conflicts:
	add_people/templates/add_people/_section_classlist.html
	add_people/templates/add_people/_section_userlist.html
	add_people/templates/add_people/create_section_form.html
	add_people/templates/add_people/section_details.html
	add_people/templates/add_people/section_list.html
Merge branch 'feature/post_release_fixes' into feature/sections_ui_fixes2

# By Roderick Morales
# Via Roderick Morales
* feature/post_release_fixes:
  Disable delete popup buttons while the member is been removed from section
  This commits addresses usability and interactions with the UI: When the user clicks on the arrow to move an user, the arrow changes to a spinning signifier to indicate that the the process has started. After clicking on the arrow an overlay div goes over the whole UI to avoid fast clicking Moved success/error messages to be dismissible alert messages Changed the location of success/error messages within the list instead of above them

Conflicts:
	add_people/templates/add_people/create_section_form.html
Merge pull request #127 from Harvard-University-iCommons/feature/sections_ui_fixes2

Feature/sections ui fixes2