datasets now logs event for manifest request, and after its display
datasets now logs event for manifest request, and after its display

FredHutch/Oncoscape,LisaMc/Oncoscape,FredHutch/Oncoscape,FredHutch/Oncoscape,LisaMc/Oncoscape,LisaMc/Oncoscape,FredHutch/Oncoscape,FredHutch/Oncoscape,LisaMc/Oncoscape,LisaMc/Oncoscape