Update colorpicker.js

resolve the relative effect between colorpicker objects
minimal code formatting edit
Merge remote-tracking branch 'remotes/wuv1982/master'

Conflicts:
	colorpicker.js
properly show the working of the 'transparent' button in the colorpicker: when clicked a smiley becomes visible which is otherwise hidden behind the background-color-ed layer.
Merge branch 'no-color-demo-fix'