Log Message:
Update ruby-sequel to 3.45.0.

=== 3.45.0 (2013-03-01)

* Remove bad model typecasting of money type on PostgreSQL (jeremyevans) (#624)

* Use simplecov instead of rcov for coverage testing on 1.9+ (jeremyevans)

* Make the Database#quote_identifier method public (jeremyevans)

* Make PostgreSQL metadata parsing handle tables with the same name in
  multiple schemas (jeremyevans)

* Switch query extension to use a proxy instead of Object#extend (chanks,
  jeremyevans)

* Remove Dataset#def_mutiation_method instance method (jeremyevans)

* Make foreign key parsing on MySQL not pick up foreign keys in other
  databases (jeremyevans)

* Allow per-instance overrides of Postgres.force_standard_strings and
  .client_min_messages (jeremyevans) (#618)

* Add Sequel.tzinfo_disambiguator= to the named_timezones plugin for
  automatically handling TZInfo::AmbiguousTime exceptions (jeremyevans) (#616)

* Add Dataset#escape_like, for escaping LIKE metacharacters (jeremyevans)
  (#614)

* The LIKE operators now use an explicit ESCAPE '\' clause for similar
  behavior across databases (jeremyevans)

* Make Database#tables and #views accept a :qualify option on PostgreSQL to
  return qualified identifiers (jeremyevans)

* Make json_serializer and xml_serializer plugins secure by default
  (jeremyevans)

* Address JSON.parse vulnerabilities (jeremyevans)

* Fix Dataset#from_self! to no longer create a self-referential dataset
  (jeremyevans)

* Use SQLSTATE or database error codes if available instead of regexp parsing
  for more specific DatabaseErrors (jeremyevans)

* Add unlimited_update plugin to work around MySQL warning in replicated
  environments (jeremyevans)

* Add the :retry_on and :num_retries transaction options for automatically
  retrying transactions (jeremyevans)

* Raise serialization failures/deadlocks as Sequel::SerializationFailure
  exceptions (jeremyevans)

* Support transaction isolation levels on Oracle and DB2 (jeremyevans)

* Support transaction isolation levels when using the JDBC transaction support
  (jeremyevans)