Bump to 3.1.4

Happy pi release!

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Gemfile.lock

 PATH
 PATH
   remote: .
   remote: .
   specs:
   specs:
-    paperclip (3.1.3)
+    paperclip (3.1.4)
       activemodel (>= 3.0.0)
       activemodel (>= 3.0.0)
       activerecord (>= 3.0.0)
       activerecord (>= 3.0.0)
       activesupport (>= 3.0.0)
       activesupport (>= 3.0.0)

NEWS

+New in 3.1.4:
+
+* Bug fix: Allow user to be able to set path without `:style` attribute and not raising an error.
+  This is a regression introduced in 3.1.3, and that feature will be postponed to another minor
+  release instead.
+* Feature: Allow for URI Adapter as an optional paperclip io adapter.
+
 New in 3.1.3:
 New in 3.1.3:
 
 
 * Bug fix: Copy empty attachment between instances is now working.
 * Bug fix: Copy empty attachment between instances is now working.

lib/paperclip/version.rb

 module Paperclip
 module Paperclip
-  VERSION = "3.1.3" unless defined? Paperclip::VERSION
+  VERSION = "3.1.4" unless defined? Paperclip::VERSION
 end
 end