Patch from Florian Wunderlich to correctly support java Timestamps. Previously

Patch from Florian Wunderlich to correctly support java Timestamps.  Previously
the code would only capture milliseconds where as both postgres and the java
Timestamp object support greater resolution.
Also fixed a bug reported by Rhett Sutphin where the last digit of the
fractional seconds was lost when using timestamp without time zone

 Modified Files:
 	jdbc/org/postgresql/jdbc1/AbstractJdbc1ResultSet.java
 	jdbc/org/postgresql/test/jdbc2/TimestampTest.java