#60 update name to make more sense
Turn highlighting on be default for standard test data
#60 improved scrolling tests to account for new async nature fo features
#62 make vertical sizing async from scrolling thread

Reduce DOM operations by an order of magnitude

Now trigger scroll event at proper times, even when shim-scrolls and
rebuilds happen

Cache the column content for rows for better scroll performance

Refactor a lot of code for performance enhancements