Add an union in the PARM structure to contain int values
  Use a cast to ptrdiff_t in MAPFAM/MXPFAM::InitDelete required by some compilers
modified:
  storage/connect/array.cpp
  storage/connect/filamap.cpp
  storage/connect/filamtxt.cpp
  storage/connect/global.h
  
- Suppress some GCC warnings
modified:
  storage/connect/array.cpp
  storage/connect/filter.cpp
  storage/connect/tabdos.cpp
  storage/connect/tabmysql.cpp
  storage/connect/value.cpp