document page meta-data: allow type property to be added automatically

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2179 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
load google maps api asynchronous

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2180 1f8fe7d8-47f0-464c-8d0a-336f4953ab05