Goals:

1) Start development environment (with hot deployment enabled) directly from home directory, just by:

        mvn pax:run

   'cd deepamehta3-delivery' and '-P development' is not necessary anymore.
   (Both, the delivery directory and the development profile dosn't exist anymore.
   The delivery directory is now called 'deepamehta3-provision'.)

   Running with fresh runtime environment:

        mvn clean pax:run

2) When building all modules the distribution zip file is not generated anymore.
   (Building all modules and generating a distribution is regarded as 2 distinct use cases.)

   Building all modules (from home directory):

        mvn install -P all

   Generating the distribution zip file:

        cd deepamehta3-distribution
        mvn package

3) Keeping most configuration properties at a central location.
   The following properties are defined in the global POM (in home directory):

        dm3.database.path               (overridden in distribution POM)
        java.util.logging.config.file   (overridden in distribution POM)
        org.osgi.service.http.port
        file.encoding
        felix.log.level
        felix.fileinstall.dir           (along with all other felix.fileinstall properties)

   (Pending: revise 'plugin-parent' module)