Log Message:
Update to 3.5.1:

Version 3.5.1  Released February 17, 2015 (git commit \ 
6c3457ee20c19ae492d29c490af6800e7e6a0774)

  - Prevent core dump if the second argument to the quote() method
    is anything but a hashref
    [Greg Sabino Mullane]
    (CPAN bug #101980)

  - Better "support" for SQL_ASCII servers in the tests.
    Allow env var DBDPG_TEST_ALWAYS_ENV to force use of DBI_DSN and DBI_USER in \ 
tests.
    [Greg Sabino Mullane]

  - Fix client_encoding detection on pre-9.1 servers
    [Dagfinn Ilmari Mannsåker]

  - Fix operator existence check in tests on pre-8.3 servers
    [Dagfinn Ilmari Mannsåker]

  - Documentation fix
    [Stuart A Johnston]

  - Fix pg_switch_prepared database handle documentation
    [Dagfinn Ilmari Mannsåker]