Merge pull request #68 from teharrison/master

added collection retina widget and wrapper functions to call it
Merge pull request #69 from teharrison/master

metagenome and collections: caching / pixal pushing / more retina goodies
Merge pull request #70 from teharrison/master

added mg subselection in collection display
Merge pull request #71 from teharrison/master

 	updated collection and metagenome display classes to load the widget on init and pass the data then (only once)
Merge pull request #72 from teharrison/master

fixes / updates for javascript embedded in display classes
Merge pull request #73 from teharrison/master

added missing <div> closure for javascript
Merge pull request #74 from teharrison/master

changed plant views to use display class - fixed manhattan plot
Merge pull request #75 from teharrison/master

bunch of changes to make javascript in cells work with data loading
Merge pull request #76 from teharrison/master

config update / some restructure
Merge pull request #77 from teharrison/master

 	added retina config to load