Add package.json
Add recyclist.css
Add fixes from bug 975831
Update example app
Guard against forget() function not existing.
Use object literal instead of array.
Faster Math.floor and Math.ceil operations
Update recyclist.js with faster Math.floor and Math.ceil.
Optimize sync/async item population.
Remove setTimeout from eventHandler.
Fix manifest json
Remove layer trick on individual items
Basic header functionality
Change header style
Render headers at appropriate position
Pre-calculate position information for list items.
Use same count as heavy ref workload for now.
Use a binary search for start/end indexes.
Update recyclist.js to use headers
Merge pull request #2 from KevinGrandon/list_headers_2

Implement recyclist headers.