Mass Dedupe Workflow Improvements

Submitting code improvements that we did for LLR (for v4.5) - http://vedaconsulting.co.uk/civicrm-dedupe-workflow-ui
CiviCON Denver 2015 Session - https://www.youtube.com/watch?v=4aMxuuR2Hlc&index=23&list=PLjSU7YfE0E01HW7JPVAI80XDI0sgOSPDs

Feature List:

• Display more information / columns on the screen listing duplicates - email, street address, post code
• hover information - a pop up displaying more information about contacts listed in duplicate list (similar to contact search listing)
• Allow searching and locating specific duplicate pairs
• User be able to selectively specify the duplicate pairs to run batch merge on
• Batch merges to use civicrm queue mechanism to show a progress bar on UI
• Any conflicts during merges to be stored and reported in UI as a new column
• Conflicts column to show meaningful labels than just conflicting keys
• Allow user to run "aggressive merges" on records in conflicts
• Allow flipping dupe pairs at row and batch of dupe pairs.