added the Fake and Fake2 classes to libltest
added the TProp class
added the LParamSpec type
added l_object_install_properties()
added l_object_get_property()
added the LParamSpecPool type
added l_param_spec_unref()
added los_init()
added l_param_spec_pool_register()
added l_param_spec_pool_lookup()
fixed l_param_spec_int()
added LParamSpec.param_id and owner_type
added l_param_spec_ref()
typo
added LparamSpec.name
fixed l_param_spec_pool_register/lookup()
fixed param lookup for derived classes
fixed LObject.get_property()
added l_objectset_property()
added LParamSpec.value_type