[tracker] (12 commits) Non-fast-forward update to branch wip/carlosg/http-endpoint

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/http-endpoint' 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:

  5da90a6... libtracker-sparql: Add private/abstract TrackerSerializer o
  62d3f84... libtracker-sparql: Add private JSON serializer subclass
  ca56fbb... libtracker-sparql: Add private XML serializer task
  a40b9a1... libtracker-sparql: Hook XML/JSON serializers to constructor
  6bee5a0... libtracker-sparql: Add HTTP endpoint implementation
  57f0c05... tracker: Add --http-port option to "tracker3 endpoint" comm
  e0c820c... tests: Add basic functional test for the HTTP endpoint
  e6265c1... libtracker-sparql: Add signal to control access to HTTP end
  5a9e8d2... tracker: Add --loopback option to "tracker3 endpoint"
  5988251... docs: Document --http-port/--loopback options in endpoint m

Commits added to the branch:

  29fd7c4... build: fix build when using --buildtype=plain (*)
  47b808d... Merge branch 'abderrahim/fix-build' into 'master' (*)
  62c17e7... libtracker-sparql: Add private/abstract TrackerSerializer o
  3fc5916... libtracker-sparql: Add private JSON serializer subclass
  c454bb8... libtracker-sparql: Add private XML serializer task
  9b884ee... libtracker-sparql: Hook XML/JSON serializers to constructor
  8be9514... libtracker-sparql: Add HTTP endpoint implementation
  1be1335... tracker: Add --http-port option to "tracker3 endpoint" comm
  0e3cd6f... tests: Add basic functional test for the HTTP endpoint
  31653cd... libtracker-sparql: Add signal to control access to HTTP end
  cb03c76... tracker: Add --loopback option to "tracker3 endpoint"
  7843914... docs: Document --http-port/--loopback options in endpoint m

(*) This commit already existed in another branch; no separate mail sent