In RTL the Spinner is now properly centered.

Enyo-DCO-1.1-Signed-off-by: Blake Stephens <blake.stephens@lge.com>
Merge pull request #1642 from enyojs/fix-RtlCenteredSpinner-blakestephens

In RTL the Spinner is now properly centered.

Looks good!

Reviewed-by: Aaron Tam (aaron.tam@lge.com)