edb-debugger - server: Use closesocket() on Windows, not close() to

Log Message:
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Use closesocket() on Windows, not close() to close a socket.

Modified Files:
--------------
server:
pldbgapi.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/edb-debugger/server/pldbgapi.c.diff?r1=1.2&r2=1.3)
plugin_debugger.c (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/edb-debugger/server/plugin_debugger.c.diff?r1=1.4&r2=1.5)