v 1.02:

Little bug concerning strncat library function in Linux fixed: strncat
under Linux crashes when the source is a NULL pointer. Now it tests before
calling the function.

v 1.03:

- If a field is empty msqlFetchRow() returns a zero pointer for that field.
Pasting this into a field is no problem on HP, SUN and some Linux versions,
but other Linuxes (with different libraries versions) may core dump.
For that reason I have built in a check to prevent passing NULL pointers.
(maybe the same strncat problem ?)
