The software release was re-written to use jinja2 templates

  If required older versions might have the code archive.

  Follow up changes on monitor stack refectoring.
  Include a standard fluend to upload collected data to wendelin.

@jm noticed downloading arhives in tar.gz format was failing. Details are in second patch.

/cc @lab.nexedi.com

/reviewed-on nexedi/slapos!70

fix publish custom frontend url
simplify monitoring connection parameters

/reviewed-by: TrustMe

This causes Cloudooo to not listen anymore.

/reviewed-on nexedi/slapos!75

* now glib is built with our own pcre.
* libsigc++, glibmm, pangomm and atkmm are kept in older version because glibmm >= 2.46 requires C++11 compiler.