Corrected to look for existing records before insert
HOSSUP-3378 Modified duplicate record patch to conform to character
line limit and updated unit test
HOSSUP-3507 - Updated release to 2.5.1.4
HOSSUP-3529 Fix linking to the single grade page from the Grade Me
block so that the correct page is displayed for the given user
HOSSUP-3624 - Refined selector to fix override of collapsed topics course format.
HOSSUP-4155 - Updated release to 2.5.1.5.