Add index.html to the examples folder.
Merge pull request #639 from RandScullard/master

Add index.html to the examples folder
Merge pull request #638 from kzhdev/master

Performance Improvement: Avoid calling getDataItem multiple time for the same row.
fixed a bug where after selecting multiple rows, click the active cell doesn't un-select other rows
Merge remote-tracking branch 'upstream/master'