delegate.H: increment reference count on all supported objects
cpoll: properly initialize and deinitialize DelegateBase objects in unions
cppsp: allow modules to be loaded to Host instances
cppsp: disable sendfile for files smaller than 1MiB
cppsp: added simple embedded api
cppsp: example_embedded: updated to new api
makefile: added cppsp_embedded_example (example_embedded.C)