pgsql: Properly implement "Response files" for bcc.

Log Message:
-----------
Properly implement "Response files" for bcc. Add URL's to describe the
feature for Win32 and bcc.

Modified Files:
--------------
pgsql/src/interfaces/libpq:
bcc32.mak (r1.14 -> r1.15)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/bcc32.mak.diff?r1=1.14&r2=1.15)
win32.mak (r1.32 -> r1.33)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/win32.mak.diff?r1=1.32&r2=1.33)