added metainfo button for folders

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3731 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
language update: new URL

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3732 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
preview optimizations

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3733 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
build auto version (2911) ...

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3734 1f8fe7d8-47f0-464c-8d0a-336f4953ab05