Address ISLANDORA-1023
Merge pull request #58 from ruebot/7.x-ISLANDORA-1023

Address ISLANDORA-1023
Oadded islandora_bookmark_object_markup_alter()
Added missing function param in comments.
Merge pull request #60 from MorganDawe/7.x-LBL-81

7.x lbl 81.  Adding a markup alter.