pplmec at 36999 [breaking news] ft?  WHAAAT?  &%D
pplmed in Business Class, Boiii [this time at 38897 ft].  WHAAAT?  &%D
[plus bonus v.minor pplmec tidyings]
Much Make Magic to get pplMe into a state where it's hopefully(! S:&) easy to
build.  Notable Stuffs:
 * pplMe no-longer depends upon 3rdParty because unfortunately a few of the
   3rdParty libraries seem to want to do too much when rebuilt (without making
   any changes).  (It's probably my fault, but realistically building 3rdParty
   should be a one-time thing, so I'm not that bothered.)
 * For similar reasons, split `clean' into `clean' and `megaclean'.
 * Lots of library-related twiddlings in common.mk.  Some of these are probably
   okay, some I think are because of me being broken by experience and thinking
   I should statically link and/or are due to my ignorance of libtool.