Updated the order plugin goals will be executed
Fixed javadoc tags
Added groups property, comment in generated files and fix for searching non-existing folders.
Changed the @GraphWalker annotation to supports multiple @Execution annotations. Each @Execution supports the normal execution parameters and by adding a group definition we can select which executions to run.
Removed @Execute for the mojos in the maven plugin, except the test mojo, due to that otherwise the process is forked several times during a test execution.