[glib] (49 commits) Non-fast-forward update to branch wip/hadess/add-memory-monitor

[Bastien Nocera <hadess src gnome org>]

The branch 'wip/hadess/add-memory-monitor' 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:

  d507da5... gio: Add GMemoryMonitor to monitor for low-memory
  9a427f2... gio: Add stub test program for GMemoryMonitor

Commits added to the branch:

  a3d90c0... gatomic: Fix false positive with Clang+TSAN (*)
  efe5b70... gvariant: Handle empty serialisations in get_child_value() (*)
  3636bb5... Add a wrapper for fsync() function (*)
  5c6030e... gdatetime: Fix error handling in g_date_time_new_ordinal() (*)
  57fc0be... gmarkup: Add a limit on the number of attributes in an elem (*)
  c4ec302... Merge branch 'ossfuzz-16103-ordinal-dates' into 'master' (*)
  9ca97b8... gsignal: Document class init before signals can be looked u (*)
  b96e318... docs: Remove priv pointers from the tutorial example (*)
  66a5704... Merge branch 'gobject-tutorial-no-priv' into 'master' (*)
  744f5c4... Merge branch '767-signal-class-refs' into 'master' (*)
  273049a... Annotate the return value of various utility functions (*)
  c8bad68... Merge branch 'utils-doc-annotations' into 'master' (*)
  2d37239... gspawn: Optimize fd closing on AIX and BSDs (*)
  3ad375a... Merge branch '1843-tsan-atomic-clang-fix' into 'master' (*)
  55f9c6d... gatomic: Add various casts to use of g_atomic_*()s to fix w (*)
  ec848cb... tests: Use g_assert_*() in atomic tests rather than g_asser (*)
  9a16f26... gatomic: Reorder memory barriers in fallback atomic operati (*)
  e3b87b6... Merge branch 'add_g_fsync_function' into 'master' (*)
  1f8d345... Merge branch '1565-atomic-signs' into 'master' (*)
  d0964b7... docs: Fix typo in GConverter{Input,Output}Stream section ti (*)
  22aed45... Merge branch 'docs-heading-typo' into 'master' (*)
  4170528... Merge branch '1449-atomic-fallback-safety' into 'master' (*)
  a902add... Merge branch 'ossfuzz-12960-markup-attribute-limit' into 'm (*)
  f4dd856... gdatetime: Fix error handling in g_date_time_new_week() (*)
  a96c449... Merge branch '1865-variant-get-child-serialisation' into 'm (*)
  03e3a03... Merge branch 'ossfuzz-17648-date-uninit-variable' into 'mas (*)
  1015bfb... fileinfo: Mention that usec mtimes are set (*)
  02a7af7... Merge branch 'fileinfo-mention-attr-usecs' into 'master' (*)
  00c04fd... gdate: Fix tautological comparison warnings on Android (*)
  91cb171... Improve GLIB_DEPRECATED_MACRO_FOR output (*)
  64cd20d... Merge branch 'android-warning-fix' into 'master' (*)
  8af0ba9... Merge branch 'diagnosticfix' into 'master' (*)
  8af823c... gspawn: Use fdwalk provided by system only when it is known (*)
  eae72c3... gspawn: Rewrite some retry loops to use `while` rather than (*)
  1097b50... gspawn: Retry on EBUSY errors from dup2() (*)
  6192fd4... Merge branch 'gspawn' into 'master' (*)
  2a4b9eb... gio/gfileinfo: fix param reference in doc comment (*)
  3ede078... Merge branch 'patch-1' into 'master' (*)
  bbbdc27... build: Bump Python requirement to ≥ 3.5 (*)
  61509ea... Merge branch 'python-version' into 'master' (*)
  55997a0... gtestutils: Allow cmpmem() arguments to be NULL iff lengths (*)
  c27be68... Merge branch '1897-cmpmem-null-handling' into 'master' (*)
  9239f26... gregistrysettings: bump key name length to 128 (*)
  90bdc2f... Merge branch 'gregistry-key-name-len' into 'master' (*)
  788c01d... Updated Danish translation (*)
  14609b0... g_file_info_get_modification_date_time: Calculate in intege (*)
  9a5a5c8... Merge branch 'exact-mtime' into 'master' (*)
  6e4ed26... gio: Add GMemoryMonitor to monitor for low-memory
  b4ce358... gio: Add stub test program for GMemoryMonitor

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