Fix remaining issues from mimetype icon rename

diff --git a/bibletime/util/cresmgr.cpp b/bibletime/util/cresmgr.cpp
index edefafe..7aac7af 100644
--- a/bibletime/util/cresmgr.cpp
+++ b/bibletime/util/cresmgr.cpp
@@ -718,7 +718,7 @@
 			const TQString icon = "unlock";
 		}
 		namespace aboutModule {
-			const TQString icon = "info";
+			const TQString icon = "application-vnd.tde.info";
 		}
 	}
 }