increase default password length validation to minimum 12 characters

Author: gregmolnar

lib/generators/templates/devise.rb

@@ -178,7 +178,7 @@
 
   # ==> Configuration for :validatable
   # Range for password length.
-  config.password_length = 6..128
+  config.password_length = 12..128
 
   # Email regex used to validate email formats. It simply asserts that
   # one (and only one) @ exists in the given string. This is mainly