[gtk] (11 commits) ...Merge branch 'matthiasc/for-master' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  e376d63... directorylist: Fix file monitoring implementation (*)
  8e73d00... testsuite: Fix an asan error (*)
  779c71b... testsuite: Fix some memory leaks reported by asan (*)
  13b37b0... gsk: Fix a transform leak (*)
  e6d8eed... testsuite: Fix a memory leak in the bitmask tests (*)
  0546e26... bookmarklist: Don't leak uris (*)
  3d008d5... picture: Don't leak alternative-test (*)
  766f4bc... css: Fix some memory leaks in error paths (*)
  26a23d3... shortcuttrigger: Fix some leaks in error paths (*)
  0dc946d... testsuite: Assorted leak fixes (*)
  8fb1e33... Merge branch 'matthiasc/for-master' into 'master'

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