Bump version

Overview of changes:

 *  Added build-time tests

    Saturnin Demo now demonstrates how to add tests using TFKit and
    enable them on both Fedora and Debian.  (This means dependency bump
    to Saturnin 0.4.8, since overriding SATURNIN_CONF_PATH was not
    available, which made config-related tests hard in staged
    installations.)

 *  Enabled overriding path variables in launcher

    Launcher used to hard-code all environment variables.  This made
    testing in staged installations hard.

 *  Updated meta-data and templates

    An amount of smaller changes has been done to improve readability,
    maintainability and overall looks of packaging meta-data.

mkit.ini

 [project]
-    version      =  0.0.3
+    version      =  0.0.4
     name         =  Saturnin Demo
     tagline      =  Saturnin example toolkit
     pkgname      =  saturnin-demo