+20140201
+ + add/use symbol NCURSES_PAIRS_T like NCURSES_COLOR_T, to illustrate
+ which "short" types are for color pairs and which are color values.
+ + fix build for s390x, by correcting field bit offsets in generated
+ representation clauses when int=32 long=64 and endian=big, or at
+ least on s390x (patch by Nicolas Boulenguez).
+ + minor cleanup change to test/form_driver_w.c (patch by Gaute Hope).
+