[rygel] (14 commits) Created branch wip/phako/remove-warnings

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/phako/remove-warnings' was created.

Summary of new commits:

  16eb54f... build: Add fatal_warnings configure option
  1e2de70... core: Rework potential null access
  7b5e221... core,server: Fix deprecation warning for Vala >= 0.46
  bbe8586... renderer-gst: Fix namespace warning
  877a383... renderer-gst: Fix potential null access warning
  71f76fe... ui: Fix potential null access warning
  6a80e62... server: Fix potential null access warnings
  9f876b9... engine-gst: Fix potential null access warnings
  5df0a4e... lms: Fix potential null access warnings
  3fd1459... media-export: Remove dead code
  8607ccf... media-export: Fix potential null access warnings
  c621bf9... media-export: Add missing translation
  78d4e21... examples: Remove deprecated function
  9f40b06... tracker: Fix potential null access warnings