Merge pull request #4243 from edx/ahodges/documentation/DOC657

Updated for PR 4106, BLD-1134

docs/en_us/data/source/internal_data_formats/change_log.rst

@@ -16,8 +16,11 @@ Change Log
        :ref:`Tracking Logs` chapter.
    * - 
      - Added the ``stop_video`` event to the :ref:`Tracking Logs` chapter.
+   * - 
+     - Updated the ``seek_video`` event in the :ref:`Tracking Logs` chapter.
    * - 06/23/14
-     - Added a :ref:`Preface` with resources for course teams, developers, researchers, and students. 
+     - Added a :ref:`Preface` with resources for course teams, developers,
+       researchers, and students.
    * - 05/23/14
      - Added descriptions of the enrollment upgrade events to the
        :ref:`Tracking Logs` chapter.

docs/en_us/data/source/internal_data_formats/tracking_logs.rst

@@ -597,6 +597,9 @@ of the video file and play automatically stops.
 The browser emits ``seek_video`` events when a user clicks the playback bar or
 transcript to go to a different point in the video file.
 
+**History**: Prior to 25 Jun 2014, the ``old_time`` and ``new_time`` were set
+to the same value.
+
 ``event`` **Member Fields**: 
 
 .. list-table::
@@ -607,17 +610,17 @@ transcript to go to a different point in the video file.
      - Type
      - Details
    * - ``old_time``
-     - 
-     - The time in the video that the user chose to go to a different point in the file.
+     - integer
+     - The time in the video, in seconds, at which the user chose to go to a
+       different point in the file.
    * - ``new_time``
-     - 
-     - The time in the video that the user selected as the destination point.
+     - integer
+     - The time in the video, in seconds, that the user selected as the
+       destination point.
    * - ``type``
-     - 
+     - string
      - The navigational method used to change position within the video.
 
-.. need types
-
 ``speed_change_video`` 
 ------------------------
 
@@ -1958,7 +1961,7 @@ After a user executes a text search in the navigation sidebar of the Discussion
 **Event Source**: Server
 
 **History**: Added 16 May 2014.  The ``corrected_text`` field was added 5
-June 2014.
+Jun 2014.
 
 ``event`` **Fields**: