Dear JIRA friends,
After almost a year, DocMiner for JIRA has been discontinued and it's not longer available from the Atlassian's Plugin Exchange.
It's not died, it only changes. Now, it runs on Android and iPhone/iPad. You can explore SharePoint, view your documents, compare versions and most important (this is the BIG change): you can still relate tickets to document texts, but using SharePoint tasks instead of JIRA issues.
People interested in that should follow it from the DocMiner web site: www.docminer.com
As this is likely my latest post I could not imagine a better way than give cyberpatrols a nice chance to vote down me by advertising my no-plugin. 
Good luck for everybody!