new custom section on the picker
new test created for custom colors
Include the $e function, and the mootools slider code
color sliders added to the test page

but not integrated into the picker yet
integrate sliders into palette
set the custom color from the sliders
show large preview box of the color
give rounded corners to the slider
automatically select the custom color when manually chaning
when changing set color, it should not overwrite with whatever is in custom
only trigger the color select event when the dialogis closed
window should close when the user clicks on a color

unless it is a custom picker
merge code from test page into proper locations