ENHANCEMENT optimizing mapper creation

git-svn-id: http://crux-framework.googlecode.com/svn@4058 a5d2bbaa-053c-11de-b17c-0f1ef23b492c
BUGFIX storyboad fix to correct block height

git-svn-id: http://crux-framework.googlecode.com/svn@4059 a5d2bbaa-053c-11de-b17c-0f1ef23b492c