dramatically improve PGN move parsing: regex > parsing combinators
Merge branch 'master' of github.com:ornicar/scalachess

* 'master' of github.com:ornicar/scalachess:
  catch StackOverflowError in PGN parser
  Add case for sparse back-rank
  Shame on you, Scala
  Resolve clash with DividerTest.scala
  7 Minor/Majors is too much, 6 Better

Conflicts:
	src/main/scala/format/pgn/Parser.scala
fix perf tests