Fix maven build warnings - missing version

When building with maven we get lots of warnings.
This patch fixes these warnings by adding version tag to all packages.

*Question:*
What is the package "jaxrs/examples" for anyways? Its lots of code examples etc but are they used as tests or just code examples to get people started with RESTeasy?

If its just for examples and guides can we add a build option to build the application without this package. Thus reducing build time.

If its for testing should we not move those tests to some other package?

*Code:*
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.jboss.resteasy.examples:examples-guice-hello:war:3.0.8.Final
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 112, column 21
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-deploy-plugin is missing. @ line 47, column 21
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-surefire-plugin is missing. @ line 93, column 21
[WARNING]