CLC-4043: Update gems: rails-perftest / active_attr / bootstrap / pikaday / momentjs / headless
https://jira.ets.berkeley.edu/jira/browse/CLC-4043
CLC-4046: CalCentral CSS Busy Spinner Issue in Safari/Mavericks
https://jira.ets.berkeley.edu/jira/browse/CLC-4046
CLC-4039 Still more environmental needs for cron
Merge pull request #2764 from ctweney/clc-4039

CLC-4039 Still more environmental needs for cron
Merge pull request #2760 from christianv/CLC-4043

CLC-4043: Update gems: rails-perftest / active_attr / bootstrap / pikaday / momentjs / headless
NOJIRA - Gemfile - use single quotes - (non priority)

Since rubygems is now suggesting to use single quotes, we should be consistent and do the same

e.g. https://rubygems.org/gems/angular-gem
http://cl.ly/Wv9C
CLC-4050: Gear menu showing up under Activity selection menu
https://jira.ets.berkeley.edu/jira/browse/CLC-4050
Merge pull request #2763 from christianv/CLC-4046

CLC-4046: CalCentral CSS Busy Spinner Issue in Safari/Mavericks
Merge pull request #2768 from christianv/CLC-4050

CLC-4050: Gear menu showing up under Activity selection menu
Merge pull request #2767 from christianv/nojire-gemfile-quotes

NOJIRA - Gemfile - use single quotes - (non priority)
CLC-4013 - Added description to Canvas::MaintainUsers
CLC-4013 - Added CampusOracle::Queries.get_all_active_people_attributes to obtain all active users
CLC-4013 - Converted Canvas::MaintainUsers#provisioned_account_eq_sis_account? to class method
CLC-4013 - Converted Canvas::MaintainUsers#change_sis_user_id to class method
CLC-4013 - Converted Canvas::MaintainUsers#handle_changed_sis_user_ids to class method
CLC-4013 - Added Canvas::MaintainAllUsers to handle full user maintenance tasks
CLC-4013 - Added canvas:all_user_sync Rake task to perform full user sync