create cache dir on demand

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2264 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
create config dir on demand

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2265 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
removed default database in setup service

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2266 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
path constant PIMCORE_WEBSITE_VAR refactorings

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2267 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
created helper for creating directories -> replaced all mkdir()

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2268 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
REVERTED: created helper for creating directories -> replaced all mkdir()

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@2269 1f8fe7d8-47f0-464c-8d0a-336f4953ab05