Update to 0.806

Upstream changes:
0.806 (06.08.2013) - John Siracusa <siracusa@gmail.com>

    * Updated iterator leak test to work on perl 5.17.* and later (RT 86000)

0.805 (03.10.2013) - John Siracusa <siracusa@gmail.com>

    * Changed the recommended Oracle trigger PL/SQL to avoid sequence gaps.
      (Patch by Tom Adamo.)
    * Updated several Manager calls in bench.pl, adding the inject_results
      parameter.

0.804 (02.01.2013) - John Siracusa <siracusa@gmail.com>

    * Fixed some test failures on perl 5.16.2, mysql 5.5.29, and DBD::Pg 2.19.3.

0.803 (01.04.2013) - John Siracusa <siracusa@gmail.com>

    * Make char column's parse_value() method honor a column's overflow
      attribute when handling column values that are too long.
    * Correct length value in column overflow error messages.

0.802 (01.03.2013) - John Siracusa <siracusa@gmail.com>

    * Make varchar column's parse_value() method honor a column's overflow
      attribute when handling column values that are too long.

0.801 (11.24.2012) - John Siracusa <siracusa@gmail.com>

    * Fixed "DBD::Informix::st execute failed: SQL: -255: Not in transaction"
      errors in the test suite.  (Patch by Sergey Leschenko.)

0.800 (09.09.2012) - John Siracusa <siracusa@gmail.com>

    * Correct tests to account for the Loader's init_db generation fix
      in 0.799 behavior (RT 79526)

0.799 (08.10.2012) - John Siracusa <siracusa@gmail.com>

    * Added column type mappings for varchar2, nvarchar, and nvarchar2.
      (Suggested by Chris Campise)
    * Fixed some typos in the Loader documentation (RT 78860)
    * Fixed a Loader bug that caused the base class's init_db method to
      be ignored (RT 78571)

0.798 (04.04.2012) - John Siracusa <siracusa@gmail.com>

    * Fixed a typo in the Rose::DB::Object::Manager documentation.
    * Fixed a bug that caused save() not to throw an exception when
      a transaction could not be started (Reported by jdv79)
    * Converted some uses of each() to keys() to avoid iteration
      state bugs (RT 75773)
    * Corrected a broken POD link in the one-to-many relationship
      documentation.  (Reported by Nee)


(wen)