checkstyle fixes

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2445 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
fixed assertion

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2446 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
checkstyle fixes

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2447 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
image pipeline: to not scale (width&height) images if the original image is smaller than the new one

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2448 1f8fe7d8-47f0-464c-8d0a-336f4953ab05