Don't build fat jars for example artifacts.

Stop building fat jars for example artifacts (use some trickery with the
exec-maven-plugin to allow running with resources on the classpath). Fix
a few compile errors. Stop requiring file appender in logback. Use
system properties for commonly used dependency versions. Clean up a few
things in the documentation.
Merge pull request #1 from pkwarren/remove_example_fat_jars

Don't build fat jars for example artifacts.
[maven-release-plugin] prepare release v0.2.8
[maven-release-plugin] prepare for next development iteration
bumping readme to latest ver
bumping default jersey client timeout to 2s
Adding documentation to configuration classes
adding CORS filter support
fixing typo in CORS filter
removing unused required=false properties, removed misused required=true properties and replaced with @NotNull
bumping jersey, jackson, and grizzly
[maven-release-plugin] prepare release v0.2.9
[maven-release-plugin] prepare for next development iteration
bumping readme for 0.2.9 release
changes to support Tyrus 1.5
[maven-release-plugin] prepare release v0.2.10
[maven-release-plugin] prepare for next development iteration