dragging works even if you get the mouse out of the element
 * no need for hueOffset anymore as slideIndicator can get slightly out of slideELement
 * fix default indicators position
enable dragging on indicators + update documentation
position indicators in advanced example
Merge branch 'fix-dragging' of github.com:zvin/FlexiColorPicker into fix-dragging

Conflicts:
	colorpicker.js