Clean up createColorPanel, remove background & txt

Remove background & text radio buttons from the html and color.js.
Change html file to php in prep for database connection. Housecleaning
on createColorPanel function.

-change div to fieldset
-added fieldsets to document fragment
-put inputColor function on inputs as they're created, because the loops
 were neglecting the last fieldsets
-fix onblur inputs to target elements in the current fieldset, rather than the
 first fieldset
Delete index