Added callback for popup opening
Added test for popup callback
Ran build
Merge pull request #86 from omahlama/add-popup-toggle-callback

Add popup toggle callback
Support js date objects and DateTime objects as first and last date
Moved type check from DateParse to main file
Merge pull request #87 from omahlama/support-date-objects-for-range

Support js date objects as first and last date
Build for version 4.8.0