ChangeLog src/pbio dir

Fri May 13 18:14:39 BST 2011 - mao
+ now the specification for integer mapping between Fortran and C is done by fortint.h in this dir but generated on the fly by the compilation system
+ added pbio-if.h and included pbio-if.h in all the C-source files used by this dir. This file should
specify all the C-functions implemented in this library
+ got rid of the defines hpR64 and hpiaR64 in source code (pbio.c)
+ got rid of the define INTEGER_8 in source code (gbyte.c)
