- added: Inbox is now pruned after 1 year

- Added about a hundred tests for Collaboration system, Post, and Thread 
permissions
- Cleaned up code tested by the aforementioned tests
- Fixed all Test::WWW::Mechanize tests and updated the skeleton. Should be 
usable now.

lib/WebGUI/i18n/English/Workflow_Activity_PurgeOldInboxMessages.pm

@@ -0,0 +1,25 @@
+package WebGUI::i18n::English::Workflow_Activity_PurgeOldInboxMessages;
+
+use strict;
+
+our $I18N = {
+    'activityName'  => {
+        message     => q{Purge Old Inbox Messages},
+        lastUpdated => 0,
+        context     => 'Title of workflow activity',
+    },
+
+    'editForm purgeAfter label' => {
+        message     => q{Purge After},
+        lastUpdated => 0,
+        context     => 'Label for workflow property',
+    },
+
+    'editForm purgeAfter description' => {
+        message     => q{The length of time a message is allowed to remain in the inbox after it has been set to "completed"},
+        lastUpdated => 0,
+        context     => 'Description of workflow property',
+    },
+};
+
+1;