Colorpicker no longer is cut off when dataset names are short

Fixes #1819.

The problem was that the colorpicker is set to align it's right edge with the right edge of the button that opens it, because I didn't have time to right code that intelligently places it.  The fix was to align all of the colorpicker buttons to far right, which honestly, I think looks better anyway.

Also, I threw in a fix for the problem where clicking the colorpicker causes the page to jump to the top.