ENYO-308: moon.Drawer shows vertical scrollbar
ENYO-312: Guard against non-existent branding image control.

Enyo-DCO-1.1-Signed-off-by: Aaron Tam <aaron.tam@lge.com>
Merge pull request #1704 from enyojs/ENYO-312-aarontam

ENYO-312: Guard against non-existent branding image control.

Reviewed-By: Blake Stephens (blake.stephens@lge.com)
Integrated-by: Ryan Duffy (ryan.duffy@lge.com)
Adding brief description of 'moon' namespace.
Enyo-DCO-1.1-Signed-Off-By: Jim Tang (jim.tang@lge.com)
Merge pull request #1702 from enyojs/ENYO-308-artdahm

ENYO-308: moon.Drawer shows vertical scrollbar

Reviewed-by: Ryan Duffy (ryan.duffy@lge.com)
Integrated-By: Aaron Tam (aaron.tam@lge.com)
Merge branch 'master' into ENYO-44-ryanjduffy