[tracker] (6 commits) Non-fast-forward update to branch wip/carlosg/more-tests

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/more-tests' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  7bbd710... tests: Add more SPARQL builtin function tests
  042bd8c... tests: Add more tests for cast and xpath functions
  25323ba... tests: Add more aggregate function tests

Commits added to the branch:

  0a6de7f... tests: Add more SPARQL builtin function tests
  f0ae46e... tests: Add more tests for cast and xpath functions
  293072d... tests: Add more aggregate function tests
  fb5d9da... tests: Add 3-way alternative path test
  b08e3e6... tests: Add more thorough portal tests
  8d4bfe9... tests: Add more tests for TrackerSparqlCursor API