2018-11-20
--------------------------------------------
Bugfix for crash when last line in primary sensor log lacks a GPS fix.

2018-11-07
--------------------------------------------
Bugfix to key bindings for playback speed control - new bindings are: T key sets the playback speed to 1x, Y key increases the playback speed by one step and R key reduces the playback speed by one step.

New optional template parameter "export_date_time_format" that will format date/time values in CSV exports according to QT date/time format strings found here: http://doc.qt.io/qt-5/qdatetime.html#toString
Example of ISO 8601 date would be: "yyyy-MM-ddTHH:mm:ss.zzzZ". Date/times will always be expressed in UTC time. In the absence of this parameter, the date/time values will remain in UTC epoch seconds. 

The close box in the event creation dialog is now operable and equivalent to the "cancel" button.

The user will now be prompted to name the sqlite database file when opening an EM dataset unless the template parameter "database_file/name" is present. Upon opening an dataset with an existing database file, 
it will allow for either the selection of the existing file or creation of a new database file.  
