Merge branch 'master' into adequaterecord

* master: (55 commits)
  [ci skip] Move association class method notes
  extract common code in `uuid_test.rb`.
  move PostgreSQL UUID tests from `datatype_test.rb` to `uuid_test.rb`.
  [ci skip] remove guide section on models in migrations
  test case for custom PostgreSQL enum type.
  Remove inclusion of rubysl gem for rbx on generated Gemfile
  let `insert_record` actuall save the object.
  [skip ci] Fix test name typo in app generator tests.
  travis s/2.1.0/2.1.1
  Bump version of bcrypt gem
  Skip test_migrate_revert_add_index_with_name if databases do not allow to create duplicate indexes on the same columns
  Optimize getting started guide images, and use png instead of jpg
  :scissors: [ci skip]
  Point master changelogs to 4-1-stable branch
  Add missing parantheses in index_exists?
  `ActionDispatch::Head` was replaced by `Rack::Head`. Closes #14191.
  [skip ci] Standardized punctuation.
  [skip ci] Fix typo in link_to :method option description
  refactor, with_locale is not needed because I18n is mocked.
  Fix ActionView label translation for more than 10 nested elements
  ...

1 files changed, 2 insertions, 2 deletions

diff --git a/railties/lib/rails/version.rb b/railties/lib/rails/version.rb
index e4fd798d18..79313c936a 100644
--- a/railties/lib/rails/version.rb
+++ b/railties/lib/rails/version.rb
@@ -1,9 +1,9 @@
 module Rails
   module VERSION
     MAJOR = 4
-    MINOR = 1
+    MINOR = 2
     TINY  = 0
-    PRE   = "beta2"
+    PRE   = "alpha"
 
     STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
   end