Fix for ENYO-4043 -- remove references to Bootplate and clean up theming instructions.  Enyo-DCO-1.1-Signed-Off-By: Roy Sutton (roy.sutton@lge.com)
Merge pull request #23 from enyojs/ENYO-4043

Fix for ENYO-4043 -- remove references to Bootplate and clean up theming...

Reviewed - by art.dahm@lge.com
Update bootplate submodules to 2.5.1-pre.1