Bar colors from Mendix

Added the possibility to set bar colors based on attributes coming from Mx.

Added custom options

• Added the posibility to extend the options object that is passed onto
  the Google Chart.
• Changed to mx.ui.action for showing progress bar

Added default bar label

Added the possibility to define a default (translatable) bar label which
the widget uses when the selected attribute for the bar label turns out
ot be empty for one or more objects.

This means data that previously had to be filtered before presentation
can now be shown.

Fix for persisting settings.

Settings (such as bar_colour for instance) turned out to return null when the widget was not loaded for the first time. Thanks to Reekers for the fix.

Small update

• Added icon
• Forced dataItem to be a string (requirement from GoogleTimeline
  library)
• Updated test project to Mx 7.2.0

1.0.0

1.0.0 release of Google Timeline Charts for Mendix

0.9.2

Removed unintended piece from last commit

Optimization for refreshing data

When reloading data, the widget no longer creates a new DataTable, it
clears and reuses the old one instead. Also the widget now re-draws when
there is no data anymore after refresh, ensuring you're not looking at
old data.

0.9

Initital release