rename i18n/English/ArchiveOldPosts to ArchiveOldThreads to match workflow activity name

Add simple docs for Archive Old Threads and CacheEMSPrereqs

lib/WebGUI/i18n/English/Workflow_Activity.pm

@@ -25,8 +25,20 @@ our $I18N = {
 		lastUpdated => 0,
 	},
 
+	'add/edit workflow activity' => {
+		message => q|Add/Edit Workflow Activity|,
+		context => q|Title for the add and edit workflow activity screen|,
+		lastUpdated => 0,
+	},
+
+	'add/edit workflow activity body' => {
+		message => q|Add/Edit Workflow Activity|,
+		context => q|<p>Most Workflow Activities have these basic fields and properties:</p>|,
+		lastUpdated => 0,
+	},
+
 	'topicName' => {
-		message => q|Unnamed|,
+		message => q|Base Workflow Activity|,
 		context => q|The name of this workflow activity.|,
 		lastUpdated => 0,
 	},

lib/WebGUI/i18n/English/Workflow_Activity_ArchiveOldPosts.pm

@@ -1,12 +0,0 @@
-package WebGUI::i18n::English::Workflow_Activity_ArchiveOldPosts;
-
-our $I18N = {
-	'topicName' => {
-		message => q|Archive Old Posts|,
-		context => q|The name of this workflow activity.|,
-		lastUpdated => 0,
-	},
-
-};
-
-1;

lib/WebGUI/i18n/English/Workflow_Activity_ArchiveOldThreads.pm

@@ -0,0 +1,17 @@
+package WebGUI::i18n::English::Workflow_Activity_ArchiveOldThreads;
+
+our $I18N = {
+	'topicName' => {
+		message => q|Archive Old Threads|,
+		context => q|The name of this workflow activity.|,
+		lastUpdated => 0,
+	},
+
+	'archive old threads body' => {
+		message => q|<p>This workflow activity will go through all Collaboration Systems (CS) in your site and, based on the settings of that CS, archive old posts.</p>|,
+		lastUpdated => 0,
+	},
+
+};
+
+1;