Added extraction method for documents in archives

Change-Id: Id4ea7d9801a5750c77f81a2251d389adb6e06d31
diff --git a/MANIFEST b/MANIFEST
index f6e215b..5e4784b 100755
--- a/MANIFEST
+++ b/MANIFEST
@@ -102,6 +102,7 @@
 t/script/extract.t
 t/script/archive.t
 t/corpus/archive.zip
+t/corpus/archive_rei.zip
 t/corpus/BZK/header.xml
 t/corpus/GOE/header.xml
 t/corpus/VDI/header.xml