small fixes

src/cleartext.js

@@ -48,7 +48,7 @@ export function CleartextMessage(text, signature) {
   if (signature && !(signature instanceof sigModule.Signature)) {
     throw new Error('Invalid signature input');
   }
-  this.signature = signature || new sigModule.Signature([]);
+  this.signature = signature || new sigModule.Signature(new packet.List());
 }
 
 /**

src/encoding/armor.js

@@ -38,6 +38,7 @@ import config from '../config';
  *         3 = PGP MESSAGE
  *         4 = PUBLIC KEY BLOCK
  *         5 = PRIVATE KEY BLOCK
+ *         6 = SIGNATURE
  */
 function getType(text) {
   var reHeader = /^-----BEGIN PGP (MESSAGE, PART \d+\/\d+|MESSAGE, PART \d+|SIGNED MESSAGE|MESSAGE|PUBLIC KEY BLOCK|PRIVATE KEY BLOCK|SIGNATURE)-----$\n/m;

src/index.js

@@ -26,6 +26,13 @@ export * from './openpgp';
 import * as keyMod from './key';
 export const key = keyMod;
 
+/**
+ * @see module:signature
+ * @name module:openpgp.signature
+ */
+import * as signatureMod from './signature';
+export const signature = signatureMod;
+
 /**
  * @see module:message
  * @name module:openpgp.message

src/signature.js

@@ -32,7 +32,7 @@ import armor from './encoding/armor.js';
 
 /**
  * @class
- * @classdesc Class that represents an OpenPGP message.
+ * @classdesc Class that represents an OpenPGP signature.
  * Can be an encrypted message, signed message, compressed message or literal message
  * @param  {module:packet/packetlist} packetlist The packets that form this message
  * See {@link http://tools.ietf.org/html/rfc4880#section-11.3}