updating maven plugin and maven report plugin versions

Making checkstyle allow missing javadocs on getters. Leaving it up to the developer to decide if a javadoc is nessary.

Fixing some CheckStyle bugs in extras.

Attacking CheckStyle warnings in extras package.

Making checkstyle ignore missing javadocs on private members and types.

More CheckStyle Stuff

Removing FindBugs Excludes, since all they did was remove tests from the examples modules. Instead I removed the unnecessary reporting from examples. ...

Also, I've removed the umlgraph from the javadoc. It's useful, but it causes the build to complain loudly on windows machines.

Am not against putting something similar back in once we figure out how to make it play nicer.

Trying again with ignores rules.

Adding findbugs exclude rules to other projects.

Making CheckStyle more permissive of things the Piccolo2D code base doesn't agree with.

Issue 29 ; Tweaked checkstyle configuration and ran eclipse formatter on the java source in extras. Reduced checkstyle errors from 15693 to 3520. Note this commit contains formatting-related changes only, no code changes.

Issue 28; re-adding checkstyle plugin configuration to core, extras, and examples poms, adding sun_checks.xml to src/build/conf in each to enable check configuration