Add a deprecation before removing ActiveRecord::Fixtures::find_table_name

Removed in e0ef0936

The `ActiveRecord::Fixtures::find_table_name` method was removed from "master" almost a year ago, but it was never deprecated.  Here it comes back, more dead than alive.

Add Ruby 2.0 to .travis.yml.

@joshk said it's okay. :)

Removed extra call to #diff in #assert_recognizes

Removed extra call to #diff in #assert_recognizes. assert_equal calls it for you and shows the diff. Also delayed message calculation so the cost of the diff on success is now gone.

Adding sqlserver.yml template to satisfy "-d sqlserver" 

invocations of "rails new".

This reverts commit 0ecd4640.

See issue #7950.

Now mysql gem can be built on ruby 2.0.0-preview1

This reverts commit 8d8fd131.

mysql 2.8.1 gem can be built on ruby 2.0.0-preview1.

I suck at English, please help me reviewing this <3 <3 <3
[ci skip]

Conflicts:
	actionpack/lib/action_dispatch/routing/redirection.rb

This reverts commit d8596c4b.

Reason: too many mistakes [ci skip]

This reverts commit 25648ce3.

This allows easy upgrading from the old signed Cookie Store <= 3.2
or the deprecated one in 4.0 (the ones that doesn't use key derivation)
to the new one that signs using key derivation

Updated dependency on bundler to ~> 1.2.2