2.1.1
- added jscolor.presets property
- added <picker>.toGrayscale() method
- color picker box now hides when Enter or Escape key is pressed
- jscolor.options is now deprecated

2.1.0
- jscolor now installs on elements having 'data-jscolor' attribute
- class="jscolor" is no longer needed, but still supported for backward compatibility
- the 'jscolor' variable is now accessible via alias 'JSColor'
- added classes to color picker elements: 'jscolor-picker', 'jscolor-picker-wrap', 'jscolor-picker-shadow', 'jscolor-picker-border', 'jscolor-btn-close'
- prints console warning when trying to set an unrecognized configuration option
- valueElement's value is now being set only if it differs from the new value