Mavenized project per JDM. 

Allows for CI, greater testability.

References:
https://developers.google.com/appengine/docs/java/tools/maven#configuring_pomxml_settings_for_google_app_engine

https://github.com/GoogleCloudPlatform/appengine-guestbook-java
Mavenized project per JDM. 

Allows for CI, greater testability.

References:
https://developers.google.com/appengine/docs/java/tools/maven#configuring_pomxml_settings_for_google_app_engine

https://github.com/GoogleCloudPlatform/appengine-guestbook-java
Added `tomcat7` and `jetty` maven plugin runners.  See `README.md`.

Updated documentation.

Moved log(4j!) files to src/main/resources.
Merge pull request #1 from scandeezy/mavenize

Mavenized project per JDM (see links)