revising shared examples in preparation for making default NO date testing
non-hydrus specs split into merged collection rec and not, and coll_id turned into a variable
non-hydrus colls: change var name from coll_id to ckey
commented out an unused line
got rid of repeated text for hydrus tests - made a shared example
commented out an unused line
remove date testing exceptions from shared examples - date testing is moved out to specific non-hydrus colls or to hydrus shared examples