Swapped out the reference to the spinner's circles for the Moonstone Icons font.
Enyo-DCO-1.1-Signed-off-by: Blake Stephens <blake.stephens@lge.com>
Merge pull request #1367 from enyojs/BHV-7831-blakestephens

BHV-7831: Swapped out the reference to the spinner's circles for the Moonstone Icons font

Looks good!

Reviewed-by: Aaron Tam (aaron.tam@lge.com)