add os_save_node() API function #3307
add os_create_node() API function #3307
correct programmatic new node creation #3307
rename os_save_node(), change params #3307
rseparate defaults and overrides for node_object_prepare() #3307
remove os_menu from _os_create_node defaults #3307
use entity wrapper for node create #3307
add body param, entity property set to node create#3307
simplify so as not to set properties 2 times #3307
Merge pull request #3416 from baisong/3307-apifuncs

Add node API functions to os.inc #3307