[gupnp] (21 commits) Non-fast-forward update to branch wip/phako/cleanup

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/phako/cleanup' 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:

  9102642... service: Name GTasks
  440b44f... doc: An <-> a where applicable
  8957a33... test: Remove dead code
  917bda5... tests: Use g_unix_signal_add
  ce3bc18... tests,examples: Some tests are examples
  bc3a75d... All: Move README to README.md
  ba3480d... all: LGPL-2.0 -> LGPL-2.1
  7ce37c9... doc: Check for stylesheet existence on doc build
  c55ae00... Doc: Improve README.md a bit

Commits added to the branch:

  6eba07b... Fix build with hardened security flags (*)
  330d6e6... Import config.h in all C sources (*)
  6eed43f... Pin the required glib version (*)
  ab1d1ef... Throw a compilation error for too new glib features (*)
  882c99e... build: Bump GLib version to 2.66. (*)
  f66bf79... vala,gi: Fix introspection, remove overrides (*)
  f5539ee... vala: Bind varargs functions of ServiceProxyAction (*)
  1a13391... Unbreak dLeyna shutdown (*)
  227b401... service: Name GTasks
  d471f9c... doc: An <-> a where applicable
  b18e505... test: Remove dead code
  6b0bdf2... tests: Use g_unix_signal_add
  66260a3... tests,examples: Some tests are examples
  346a64a... All: Move README to README.md
  17e79ea... all: LGPL-2.0 -> LGPL-2.1
  331e2b6... doc: Check for stylesheet existence on doc build
  18a2887... Doc: Improve README.md a bit
  2dc1748... doc: Shuffle GFDL text around and include copy
  db01b2c... Remove obsolete ChangeLog file
  ce42366... doc: Fix some gtk-doc errors
  4ec0932... wip: more docs

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