* LO 7.6.7 is no longer available in /stable/ urls, so use /old/ urls
    with a specific bug fix version for tests

  * Move messagestream module to legacy
  *  Get rid of messagestream-test module as it was of poor value
  *  Move translations in the legacy module
  *  Move notification related templates in legacy module
  *  Remove calls to the script service in XS code
  *  Add TODO for handling proper events in wiki manager

* fix wrong use of Maven properties

This reverts commit 6125d42a.

This reverts commit 94949855.

This reverts commit 8e8d2d9e.

This reverts commit 33122308.

This reverts commit c1644dc9.

  * Fix previous problems