MO: endpoints for MO142,147,221,242 and other stuff

[vespertine]

All of the endpoints here were field checked by myself during my last roadtrip, with the exception of MO242.
MO142: This one is a bit of a nitpick, but where the current MO101 point is now, is actually MOsAR, and the actual MO101 intersection is one block north.
MO147: End signage puts the actual end of route at Frenchman Bluff Rd, just on the west side of the Sugar Creek bridge.
MO221: The MO21 endpoint in Pilot Knob is actually a little further south. MO221 starts on McCune St/Old 21, then goes E on Maple on its current routing.
MO242: All GMSV imagery indicates that this route ends at MOsMM, not US54Bus. Various signage from WB MO242, NB MM, and a lack of MO242 signage here lead me to believe this to be the case.

Other stuff:
MO14: Can't believe I've missed this for so long, but there's an obvious broken concurrency with US65BusOza through Ozark.
US60BusPop & US67BusPop: Both of these files erroneously refer to US160 in one of their points. Given US160 ends further south at US67, these references to US160 here should be removed.

v.

[Markkos1992]

For US60BusPop and US67BusPop, note that the suffixes on WHarSt and NMainSt (former only) should be removed in the labels.

[Highway63]

The Poplar Bluff issue has to do with US 160 being truncated years back, I suspect. Someone still has the previous version ("US60/160"), when the US 67 bypass hadn't been finished, in use as well.

[Markkos1992]

The Poplar Bluff issue has to do with US 160 being truncated years back, I suspect. Someone still has the previous version ("US60/160"), when the US 67 bypass hadn't been finished, in use as well.

I recently noticed that there are still PA60 labels in use for the western section of US 422 in PA at its I-376 concurrency.  I have no clue if those using those labels are unable to update anymore for various reasons or if they just have not bothered to change them over the years since we kept them.