The jitter-api and the jitter-plugin should always use the same version number so that it's clear which version of the api and which version of the plugin belong together.

In order to provide semantic information for the variation
As a developer
I want be able to add custom tags along with the jitter annotations

Example

Given a piece of source code annotated with a jitter annotation

Then it should be possible to add tags like this:

@OnlyIf(Flavour.NASA)
@Tags({Feature.SPACESHIP, Feature.BEARER})
public class NasaSpaceShipTest {}

In order to activate/deactivate whole packages for a given flavour
As a developer
I want to mark a package in the package-info.java with OnlyIf("XYZ")

Example

Given a flavour NASA
When there is a package nasa
This package should be annotated like this:

@OnlyIf(NASA)
package com.github.mictaege.eval.jitter.nasa;
import com.github.mictaege.jitter.api.OnlyIf;
import static com.github.mictaege.eval.jitter.Flavour.NASA;

The nested flag has to be removed from the @Alter annotation, because the solution for jitter-plugin #20 is not able to deal with nested classes.