* Command queue properties are global per CLRuntime
 * Simplified Kernel::setArgument() and added templated Kernel::setArguments()
 * cleaned up BUffer, Image and SharedTexture/GLTexture

* some work on CLRaycaster

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@247 bb408c1c-ae56-11e1-83d9-df6b3e0c105e