JS to take two .ipynb and generate the third file with diff info.
Add two short test notebooks for richard's js diff.
Merge https://github.com/tarmstrong/nbdiff into NightlyBuilds-NBDiff
Merge branch 'NightlyBuilds-NightlyBuilds-NBDiff' of https://github.com/tarmstrong/nbdiff into NightlyBuilds-NBDiff
Added fix for deleted cell.
Merge pull request #33 from NightlyBuilds/NightlyBuilds-NBDiff

JS to take two .ipynb and generate the third file with diff info.