PIMCORE-2031 - CSS issue pimcore_admin_console with bootstrap 3

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3455 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
build auto version (2855) ...

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3456 1f8fe7d8-47f0-464c-8d0a-336f4953ab05