Create release for v1.4.0

[tomschenkjr]

Need to publish a release that summarizes the changes for v1.4.0. Below is my initial draft:

New Features:
* Added a time-series and bar-chart to view data over time (#252)
* Support for bubble plots, where the dots are sized based on data (#239)
* Support for displaying "array" data in the grid/table. Only supported with the MongoDB service layer and is not on opengrid.io. (#235)
* Share queries by copying and pasting the URL (#115)

Bug fixes:
* ... ?

API 
* ...?

Configuration and Administration
* ...?

@rladines - can you fill in any of these gaps? Thanks.

[rladines]

@tomschenkjr See my additions below:

New Features:

• Added a time-series and bar-chart to view data over time (#252)
• Support for bubble plots, where the dots are sized based on data (#239)
• Support for displaying "array" data in the grid/table. Only supported with the MongoDB service layer and is not on opengrid.io. (#235)
• Share queries by copying and pasting the URL (#115)

  +* Support for custom date format on grid/table for date fields

  Bug fixes:

  +*None

API

+* A new chart object is now returned as part of the dataset descriptor under the option object
+* New column attributes were added to support #239 and #115, respectively: "dotSizer"; and "array"

Configuration and Administration

+None

[tomschenkjr]

Thank you, release has been created.