[meld/pathlabel] (73 commits) ...meldwindow: Don't try to set the VC location if it's missing

[Kai Willadsen <kaiw src gnome org>]

Summary of changes:

  fd78f65... Update Polish translation (*)
  ed45ece... Add cache to findbar to remember previous search (*)
  e1508cf... Make preferences dialog resizable (#541) (*)
  2c62e87... Change global _cache variable to class variable (*)
  4776ece... Fix imports (*)
  98d4048... Merge branch 'issue-491' into 'master' (*)
  956f41f... Update Serbian translation (*)
  0eef206... Fix FUSE directory comparisons (*)
  fa87ff9... Merge branch 'mscdex-master-patch-83759' into 'master' (*)
  5b594af... Update Brazilian Portuguese translation (*)
  56536c5... Update Turkish translation (*)
  daa2e88... Update German translation (*)
  ea9fb9c... Update Romanian translation (*)
  ad86a0f... CI: Add an explicit setuptools requirement (*)
  4ce3290... Update Swedish translation (*)
  da12775... Update Hungarian translation (*)
  99e016a... Updated Spanish translation (*)
  0335ead... Various lint fixes across the tree (*)
  c24a1d9... dirdiff, filediff: Fix sourcemap revealer behaviour (*)
  bf4d1ab... Fix line lengths (*)
  52093ad... Update Slovenian translation (*)
  60da6b9... ui.statusbar: Ellipsize status bar button labels (#561) (*)
  0cd9b29... Fix incorrect use of f-strings for i18n content (*)
  3305e58... Fix multiple-substitution i18n strings to used named argume (*)
  a4f125e... Update Ukrainian translation (*)
  b0bb813... Update Polish translation (*)
  192f264... Update Swedish translation (*)
  d3fc4ad... Update Turkish translation (*)
  2832f59... Update Brazilian Portuguese translation (*)
  445a255... Updated Czech translation (*)
  3c8b079... Updated Czech translation (*)
  3913855... Update Hungarian translation (*)
  6baebb6... Exclude po files from pre-commit checks (*)
  ffa665c... po: Fix missing newline at EOF (*)
  8ed5bef... filediff, matchers.helpers: Improve matcher process clean u (*)
  fff5bc5... filediff: Reinstate remote file selection (*)
  088dbdb... Update Basque translation (*)
  3cddda5... sourceview: Remove animation source on MeldSourceView unrea (*)
  25750b4... Add Meld icon to add/remove programs UI (*)
  d89048d... build_helpers: Add a basic GTK settings.ini file (*)
  638e57a... Update Portuguese translation (*)
  fa10940... Update Portuguese translation (*)
  726f0db... meldapp: Ensure that quit gets called when no windows remai (*)
  dd3c7e3... Update Romanian translation (*)
  2e044e3... Updated Spanish translation (*)
  5e72b6c... Update Slovenian translation (*)
  7fb633d... Add some documentation of Meld's current hosting infrastruc (*)
  067ec73... Clarify licensing in appdata (#579) (*)
  e40ada7... Update Catalan translation (*)
  92c4f3b... Update Catalan translation (*)
  375f70e... maint: Remove unused appveyor build tooling (*)
  a96e5cc... Update Indonesian translation (*)
  4496523... Re-save new-diff-tab UI with new Glade (*)
  e680447... Remove "Help" button from new diff UI (*)
  ab79b96... Improve new comparison UI (#590) (*)
  60d7d33... Update copyright in About dialog (#603) (*)
  d41a80d... Update Ukrainian translation (*)
  6b0502d... Add per-application preference for GTK's dark theme support (*)
  2fb5c21... Update Polish translation (*)
  062394a... Update Ukrainian translation (*)
  8e8bd14... Update Swedish translation (*)
  3c0f7d2... Update Brazilian Portuguese translation (*)
  817215c... chunkmap: Improve responsiveness when dragging in ChunkMap (*)
  a913821... test: Simplify buffer lines test with fixture usage (*)
  a15dbdf... meldbuffer: Add a line cache to our Bufferlines helper clas (*)
  e237790... test: Add coverage for new Bufferlines caching behaviour (*)
  aa01abf... meldbuffer: Add an option for logging cache inconsistencies (*)
  614764c... test: Try to enforce specific introspection requirements (*)
  b34f208... Update Turkish translation (*)
  8102e89... Merge branch 'master' into pathlabel
  386368b... ui.filebutton: Support passing through the local-only file 
  15e8fec... recent: Handle bad comparison metadata cases
  f182716... meldwindow: Don't try to set the VC location if it's missin

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