Release version 5.0.0.beta1

Update NEWS.

[fixes #2134]
[ci skip]

NEWS

-master:
+5.0.0.beta1
 
+* Drop support to end-of-life'd ruby 2.0.
+* Drop support for end-of-life'd Rails 3.2 and 4.1
+* Drop support for AWS v1
+* Remove tests for JRuby and Rubinius from Travis CI (they were failing)
 * Improvement: Add `fog_options` configuration to send options to fog when
   storing files.
-* Drops support to end-of-life'd ruby 2.0.
-* Improvement: Paperclip now supports aws-sdk v2
-  @betesh, @davetchen,
+* Extracted repository for locales only:  https://github.com/thoughtbot/paperclip-i18n
+* Bugfix: Original file could be unlinked during `post_process_style`, producing failures
+* Bugfix for image magick scaling images up
+* Memory consumption improvements
+* `url` on a unpersisted record returns `default_url` rather than `nil`
+* Improvement: aws-sdk v2 support
   https://github.com/thoughtbot/paperclip/pull/1903
 
   If your Gemfile contains aws-sdk (>= 2.0.0) and aws-sdk-v1, paperclip will use

lib/paperclip/version.rb

 module Paperclip
-  VERSION = "4.3.1" unless defined? Paperclip::VERSION
+  VERSION = "5.0.0.beta1" unless defined? Paperclip::VERSION
 end