npgsql - Npgsql2: Improved connection string parsing.

Log Message:
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Improved connection string parsing. Thanks Ben Sagal for patch.

Modified Files:
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Npgsql2/src/Npgsql:
NpgsqlConnectionString.cs (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlConnectionString.cs.diff?r1=1.3&r2=1.4)