ziafazal/api-order-leaders-by-time-of-achievement: order users by time of achievement if points are equal

Fixed progress value by using total modules in the course as
denominator.

variable names changes and login for total_actual_completions

efficient way to load leaf modules

 and added required settings to tests

support for coverage

guard against no completions

cdodge/update-opaque-key: update user social stats to use the legacy courseId format since that is what the comment service expects

fix broken test, make social_stats more robust based on the caller

ziafazal/api-additional-fields-to-course-detail: added include_fields param to get additional fields

make sure the social stats API endpoint accept an new source key format, but the forum service needs the old style. Plus add tests

Also contains:

* mattdrayer/rebase-20140722b: cherry-pick 0325694
* mattdrayer/rebase-20140722: cherry-pick e8b1217
* Sessions API Documentation
* mattdrayer/rebase-20140722: cherry-pick ofao48d
* mattdrayer/rebase-20140722: cherry-pick b0c343c
* mattdrayer/rebase-20140722: cherry-pick d56e973
* mattdrayer/status-500-fix: Small API bug
* added content_id to workgroup review submissions
* mattdrayer/api-user-preferences-delete: Added new Detail view, GET/DELETE operations
* mattdrayer/rebase-20140722: cherry-pick 0624385
* handle exception if user never accessed any course module
* mattdrayer/rebase-20140722: cherry-pick caada51
* cdodge/add-progress-publish-api-endpoint: expose a new xblock runtime publish special cased event type 'progress' which adds an entry into the CourseCompletions table
* add default setting for feature flag in common.py
* mattdrayer/rebase-20140722: cherry-pick 7a1e12c
* mattdrayer/rebase-20140722: Functional stabilization

added active filter

added tests

added completions to response dict

Merged course completions leaders and course avg

added is_active check

pep8 compliant

remove serialiser class

updated urls

updated docs

merged with master and updated url

remove duplicate data

mattdrayer/api-coursegrades: Added support for viewing a set of grades for a course.  Includes filters/aggregations.

switch to APIView to support url conventions

merged with master

 muhhshoaib/adding_start_and_end_date_fields_to_course_objects_1302:added start and end date fields in course module

muhhshoaib/adding_start_and_end_date_fields_to_course_objects_1302: changes in the start and end dates

Added new API to get enrolled and not enrolled users in Course Content
Group: MCKIN-1027

Also contains:

* Changes base on Matt's Feedback
* Further changes based on Matt's feedback

cdodge/fix-updates-parsing: seems like studio now uses a different HTML formatting, e.g. sections & articles rather than ol & li

make backwards compatible to read older versions of Studio produced updates

add some tests

apply_group_type_fiter_1013 added request parameter in delete function of UserCoursesDetail
https://github.com/edx-solutions/edx-platform/pull/43

Includes:
* Initial API implementation
* API_KEY header fix
* Fixed indentation error
* move api from common to lms
* Course-Group Relationships
* wip
* add parsing of overview content blob
* initial implementation
* get course updates API method
* get course static tabs API methods
* add unit tests
* fix some merge conflicts and remove some extra print statements picked up in rebase
* better constrain some of the course url regexs to expect a triple for courseId
* add ability to enroll users into courses
* wip
* add queryable group lists
* add a GET endpoint to /api/groups/{groupid}/courses to get the list of courses associated with the group (program)
* return the display names when listing all courses in a group (program)
* create optimized course tree query API endpoint
* make sure group profile data is properly serialized and deserialized. There appears to be a difference between how the Django test client handles things. Disabling unit test for now to unblock UI devs
* null guard
* fix broken unit test
* add GET endpoint to group/user relationships
* Added Security to session api as requested in #785
* Storing passoword history of user and validation for user's email and username
* Moved security tests to lms also
* add two FEATURE flag overrides to enable the security features
* remove unnecessary settings overrides (because they are 'feature flags')
* Adding ratelimiting on login api
* Migrated from Function-Based Views to Class-Based-Views
* Create new Account/Login Audit Log
* The API should provide for an audit log when a user creates a new account or logs into the system.
* UserList.post() now creates UserProfile, UserPreference records
* Group Profile fix
* Filter group subgroups by group type
* Application reorganization
* Name is now required during group creation
* Added null check for profile name
* User must reset password functionality added
* User must reset password dunctionality added
* Added user password reset functionality
* Add password reset api and implemented Password history
* Remove unused imports, password reset message text