Fix symmetric ciphers not working on Ruby 1.8.6 and below

Author: obrie

CHANGELOG.rdoc

@@ -1,5 +1,7 @@
 == master
 
+* Fix symmetric ciphers not working on Ruby 1.8.6 and below
+
 == 0.3.0 / 2008-12-14
 
 * Remove the PluginAWeek namespace

lib/encrypted_strings/symmetric_cipher.rb

@@ -92,7 +92,7 @@ def encrypt(data)
 
     private
       def build_cipher(type) #:nodoc:
-        cipher = OpenSSL::Cipher.new(algorithm).send(type)
+        cipher = OpenSSL::Cipher::Cipher.new(algorithm).send(type)
         cipher.pkcs5_keyivgen(password)
         cipher
       end