- we also seem to have artifact information tangled inside the plugin model
- we have to deal with scripting implementations (groovy, beanshell, ruby)
- we need to deal with a shared context for plugins, like the guarded mojos
- we need to deal with plugins as core application logic which can also interact with plugins

          <name>language</name>
          <version>1.0.0+</version>
          <type>String</type>
          <defaultValue>java</defaultValue>
          <description>The implementation language for this Mojo (java, beanshell, etc.).</description>
        </field>
        <field>
          <name>phase</name>
          <version>1.0.0+</version>
          <type>String</type>
          <description>