Update src/SimpleThings/EntityAudit/Utils/ArrayDiff.php

Replaced Identical operator with Equal operator in Utils/ArrayDiff in order to have DateTime fields not show up as changed even though they haven't.
[GH-28] Fix PostgreSQL result casing
Add Travis configuration
Merge pull request #25 from WrittenGames/master

DateTime field fix, see issue #24
[GH-19] Implement support for sql conversion functions.
[GH-19] support sql conversions in retrieving entities.
Add sequence name to allow the bundle to work with PostgreSQL
Changed lastInsertId() to accept null or sequence name, for platforms that support it
Merge pull request #34 from CainAndAssociates/master

Sequence name to allow EntityAudit to work with PostgreSQL
Avoid undefined index notices in UOW

When auditing an entity that has a relationship that is not yet in the identity map, the UoW will cause an Undefined index error.
Fix additional edge case