SVN_SILENT made messages (.desktop file) - always resolve ours

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

src/effects/backgroundcontrast/metadata.json

@@ -50,6 +50,7 @@
         "Name[ca]": "Contrast del fons",
         "Name[cs]": "Kontrast pozadí",
         "Name[de]": "Hintergrundkontrast",
+        "Name[en_GB]": "Background Contrast",
         "Name[es]": "Contraste del fondo",
         "Name[eu]": "Atzeko planoaren kontrastea",
         "Name[fr]": "Contraste de l'arrière-plan",

src/effects/morphingpopups/package/metadata.json

@@ -86,6 +86,7 @@
         "Name[ca]": "Missatges emergents en metamorfosi",
         "Name[cs]": "Morfující vyskakovací okna",
         "Name[de]": "Verformende Aufklappfenster",
+        "Name[en_GB]": "Morphing Popups",
         "Name[es]": "Transformación de ventanas emergentes",
         "Name[eu]": "Eraldatzen diren gainerakorrak",
         "Name[fr]": "Effectuer un fondu enchaîné des infobulles",

src/effects/slidingpopups/metadata.json

@@ -50,6 +50,7 @@
         "Name[ca]": "Missatges emergents desplaçant-se",
         "Name[cs]": "Klouzající vyskakovací okna",
         "Name[de]": "Hereingleitende Aufklappfenster",
+        "Name[en_GB]": "Sliding Popups",
         "Name[es]": "Deslizar ventanas emergentes",
         "Name[eu]": "Gainerakor irristakorrak",
         "Name[fr]": "Annotations glissantes",