2.2.1: Maintenance Release

Fixes

• Gauges now scale properly on IE9/10/11 and Edge
• Increase chart size to better fill available space
• Fix colour-picker touch support (temporary patch while awaiting upstream fix)
• Fix slight transparency issue on select dropdown
• Small changes to colour-picker styling
• Allow use of wi and icofont icon families (only if loaded externally via ui_template)
• Fix for overlapping last X-axis label (temporary while fixed upstream)