[maven-release-plugin] prepare for next development iteration
Add Travis build file
Fix contributor formatting
Adding myself as a contributor
Add support for externally registered factories

Useful when you can't, or don't want to modify the
classes you're hydrating.
Reduce excessive info level logging
Migrate to modules
Test that exposes stack overflow on non-static inner classes
Ignore Pdm4PojoUnitTest, broken on jdk7

Issue: https://github.com/mtedone/podam/issues/25
Prrof: https://travis-ci.org/astubbs/podam
Swap log4j for slf4j
Fix for recursive collections

Always carry depth with us.
Guava Optional support

PodamOptional can use custom factories.

Documentation for Optional and external Strategies

Supports multiple optionals of different types.

Also handy GuavaPodamFactory.
Refactors out external factories functionality