Merge pull request #867 from Arantor/release-2.1

! The list of auto suggested versions might as well be correct for now.

Sources/Subs-Editor.php

@@ -2373,10 +2373,13 @@ function AutoSuggest_Search_SMFVersions()
 		'SMF 2.0 beta 1.2',
 		'SMF 2.0 beta 2',
 		'SMF 2.0 beta 3',
-		'SMF 2.0 RC 1',
-		'SMF 2.0 RC 1.2',
-		'SMF 2.0 RC 2',
-		'SMF 2.0 RC 3',
+		'SMF 2.0 beta 4',
+		'SMF 2.0 RC1',
+		'SMF 2.0 RC1.2',
+		'SMF 2.0 RC2',
+		'SMF 2.0 RC3',
+		'SMF 2.0 RC4',
+		'SMF 2.0 RC5',
 		'SMF 2.0',
 		'SMF 2.0.1',
 		'SMF 2.0.2',