0.7.2-RC3

In this release a lot of bugs have been fixed.

• Show HTML tags in a note #345, #378, #368
• Fix bugs with showing checkboxes #333
• Fix table styles, close #253
• Don't show a note after it is deleted #337
• Fix pagination buttons #335
• Don't run WebWorkers from file:// protocol
• Disable WebWorkers on Webkit based browsers. It resolves the following issues #16, #95, #266, #188, and #340.
• Improve CSS styles of notebook selector #390, #346
• Make tables responsive #392
• Add horizontal scrollbars for code blocks #392