Add plugin blocklist

Starting with blocking the old fullscreen plugin

core/language/en-GB/Import.multids

@@ -6,7 +6,8 @@ Listing/Import/Caption: Import
 Listing/Select/Caption: Select
 Listing/Status/Caption: Status
 Listing/Title/Caption: Title
-Upgrader/Plugins/Suppressed: Suppressed plugin (due to incoming <<incoming>>  being older than existing <<existing>>)
+Upgrader/Plugins/Suppressed/Incompatible: Blocked incompatible or obsolete plugin 
+Upgrader/Plugins/Suppressed/Version: Blocked plugin (due to incoming <<incoming>>  being older than existing <<existing>>)
 Upgrader/Plugins/Upgraded: Upgraded plugin from <<incoming>> to <<upgraded>>
-Upgrader/System/Suppressed: Suppressed system tiddler
+Upgrader/System/Suppressed: Blocked system tiddler
 Upgrader/ThemeTweaks/Created: Migrated theme tweak from <$text text=<<from>>/>

core/modules/upgraders/plugins.js

@@ -14,6 +14,12 @@ Upgrader module that checks that plugins are newer than any already installed ve
 
 var UPGRADE_LIBRARY_TITLE = "$:/UpgradeLibrary";
 
+var BLOCKED_PLUGINS = {
+	"$:/plugins/tiddlywiki/fullscreen": {
+		versions: ["*"]
+	}
+};
+
 exports.upgrade = function(wiki,titles,tiddlers) {
 	var self = this,
 		messages = {},
@@ -23,7 +29,7 @@ exports.upgrade = function(wiki,titles,tiddlers) {
 				upgradeLibrary = wiki.getTiddlerData(UPGRADE_LIBRARY_TITLE,{});
 				upgradeLibrary.tiddlers = upgradeLibrary.tiddlers || {};
 			}
-			return upgradeLibrary.tiddlers[title]
+			return upgradeLibrary.tiddlers[title];
 		};
 
 	// Go through all the incoming tiddlers
@@ -46,7 +52,18 @@ exports.upgrade = function(wiki,titles,tiddlers) {
 				// Reject the incoming plugin by blanking all its fields
 				if($tw.utils.checkVersions(existingTiddler.fields.version,incomingTiddler.version)) {
 					tiddlers[title] = Object.create(null);
-					messages[title] = $tw.language.getString("Import/Upgrader/Plugins/Suppressed",{variables: {incoming: incomingTiddler.version, existing: existingTiddler.fields.version}});
+					messages[title] = $tw.language.getString("Import/Upgrader/Plugins/Suppressed/Version",{variables: {incoming: incomingTiddler.version, existing: existingTiddler.fields.version}});
+					return;
+				}
+			}
+		}
+		if(incomingTiddler && incomingTiddler["plugin-type"]) {
+			// Check whether the plugin is on the blocked list
+			var blockInfo = BLOCKED_PLUGINS[title];
+			if(blockInfo) {
+				if(blockInfo.versions.indexOf("*") !== -1 || (incomingTiddler.version && blockInfo.versions.indexOf(incomingTiddler.version) !== -1)) {
+					tiddlers[title] = Object.create(null);
+					messages[title] = $tw.language.getString("Import/Upgrader/Plugins/Suppressed/Incompatible");
 					return;
 				}
 			}

languages/de-DE/Import.multids

@@ -6,7 +6,7 @@ Listing/Import/Caption: Importieren
 Listing/Select/Caption: Auswahl
 Listing/Status/Caption: Status
 Listing/Title/Caption: Titel
-Upgrader/Plugins/Suppressed: Einige "plugins" weden unterdrückt! Importierte plugins: <<incoming>> sind älter als existierende: <<existing>>.
+Upgrader/Plugins/Suppressed/Version: Einige "plugins" weden unterdrückt! Importierte plugins: <<incoming>> sind älter als existierende: <<existing>>.
 Upgrader/Plugins/Upgraded:  Aktualisieren der plugins von: <<incoming>> nach: <<upgraded>>
 Upgrader/System/Suppressed: Unterdrückte "System Tiddler"
 Upgrader/ThemeTweaks/Created: Migrieren der "theme tweaks" von: <$text text=<<from>>/>

languages/fr-FR/Import.multids

@@ -6,7 +6,7 @@ Listing/Import/Caption: Importer
 Listing/Select/Caption: Sélectionner
 Listing/Status/Caption: Statut
 Listing/Title/Caption: Titre
-Upgrader/Plugins/Suppressed: Plugin supprimé (le pressenti <<incoming>> étant plus ancien que l'existant <<existing>>)
+Upgrader/Plugins/Suppressed/Version: Plugin supprimé (le pressenti <<incoming>> étant plus ancien que l'existant <<existing>>)
 Upgrader/Plugins/Upgraded: Plugin mis à jour depuis <<incoming>> vers <<upgraded>>
 Upgrader/System/Suppressed: Tiddler système supprimé
 Upgrader/ThemeTweaks/Created: Thème modifié à partir de <$text text=<<from>>/>

languages/zh-Hans/Import.multids

@@ -6,7 +6,7 @@ Listing/Import/Caption: 导入
 Listing/Select/Caption: 选择
 Listing/Status/Caption: 状态
 Listing/Title/Caption: 条目
-Upgrader/Plugins/Suppressed: 排除插件 (由于传入的 <<incoming>> 较现有版本 <<existing>> 旧)
+Upgrader/Plugins/Suppressed/Version: 排除插件 (由于传入的 <<incoming>> 较现有版本 <<existing>> 旧)
 Upgrader/Plugins/Upgraded: 升级插件，从 <<incoming>> 到 <<upgraded>>
 Upgrader/System/Suppressed: 排除系统条目
 Upgrader/ThemeTweaks/Created: 從 <$text text=<<from>>/> 遷移佈景主題

languages/zh-Hant/Import.multids

@@ -6,7 +6,7 @@ Listing/Import/Caption: 導入
 Listing/Select/Caption: 選擇
 Listing/Status/Caption: 狀態
 Listing/Title/Caption: 條目
-Upgrader/Plugins/Suppressed: 排除插件 (由於傳入的 <<incoming>> 較現有版本 <<existing>> 舊)
+Upgrader/Plugins/Suppressed/Version: 排除插件 (由於傳入的 <<incoming>> 較現有版本 <<existing>> 舊)
 Upgrader/Plugins/Upgraded: 升級插件，從 <<incoming>> 到 <<upgraded>>
 Upgrader/System/Suppressed: 排除系統條目
 Upgrader/ThemeTweaks/Created: 從 <$text text=<<from>>/> 遷移佈景主題