npgsql - Npgsql2: [#1000581] Possibly bug: not initialized Connector.

Log Message:
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[#1000581] Possibly bug: not initialized Connector.
Added another check for Connector initialization. Thanks Stan Lagun for testcase.

Modified Files:
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Npgsql2/src/Npgsql:
NpgsqlCommand.cs (r1.24 -> r1.25)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlCommand.cs.diff?r1=1.24&r2=1.25)
Npgsql2/testsuite/noninteractive/NUnit20:
ConnectionTests.cs (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/NUnit20/ConnectionTests.cs.diff?r1=1.6&r2=1.7)