video progress indicator bootstrap3 compatible

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3869 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
optimized clear temporary files for new folder structure

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3870 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
restructured document page preview paths

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3871 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
build auto version (2954) ...

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@3872 1f8fe7d8-47f0-464c-8d0a-336f4953ab05