npgsql - Npgsql2: Fixed tabs to 4 spaces Added test to check a problem

Log Message:
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Fixed tabs to 4 spaces

Added test to check a problem where prepared statements were lacking casts even when user set dbtype or npgsqldbtype. Now the casts are properly added when needed. Thanks Waldemar Bergstreiser (wbr at bergstreiser dot com) for heads up and test case.

Modified Files:
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Npgsql2/testsuite/noninteractive/NUnit20:
CommandTests.cs (r1.16 -> r1.17)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/NUnit20/CommandTests.cs.diff?r1=1.16&r2=1.17)