Also remove --skip-turbolinks.

This option is useful if users want to remove some gems like jbuilder,
turbolinks, coffee-rails, etc that don't have specific options on the
generator.

    rails new my_app --skip-gems turbolinks coffee-rails

The fix introduced at 75ba7425 were
missing this case.

To fix the original issue mentioned at that commit the correct is to
remove update_config_files from the command list since we should not run
both config_files command when creating a new application.

Tests were added to make sure everything is working fine.

sprockets-rails 2.1 needs the precompile list to be available in all
environments.

If the sqlite file name change in future version we this regexp should
catch

From #14026:

    Specific rbx-2 to limit testing on Rubinius 2.x (since there will be
    other versions of Rubinius > 2.x soon).

    Also, as of Rubinius 2.2.5, it is no longer necessary to bundle the
    rubysl gem.

This is what Rails master/4.1 supports, so we don't need to add rubysl to
gemfiles anymore.

Squashed commit of the following:

commit 96991e8e919edfb20cc4120bca4e36ed51175d57
Author: Aaron Patterson <aaron.patterson@gmail.com>
Date:   Fri Feb 14 11:29:24 2014 -0800

    Revert "gems can be added or skipped from the template"

    This reverts commit 8beb42cf.

    Conflicts:
    	railties/lib/rails/generators/rails/app/app_generator.rb
    	railties/test/generators/app_generator_test.rb

commit 35599c0e657245ef14ac0f28c9189ad16acf40e6
Author: Aaron Patterson <aaron.patterson@gmail.com>
Date:   Fri Feb 14 11:26:53 2014 -0800

    Revert "oops, template replay needs to happen after bundle. :orz:"

    This reverts commit 9104702b.

    Conflicts:
    	railties/lib/rails/generators/rails/app/app_generator.rb

commit f519c3902c313db8e906a49251c91643b8e6499e
Author: Aaron Patterson <aaron.patterson@gmail.com>
Date:   Fri Feb 14 11:25:51 2014 -0800

    Revert "only ask for these ivars if the target responds to them"

    This reverts commit 656d4125.

commit aa524a9428e3e4c45fe221f10a66a08efb827ab5
Author: Aaron Patterson <aaron.patterson@gmail.com>
Date:   Fri Feb 14 11:25:39 2014 -0800

    Revert "refactor generator tests to use block form of Tempfile"

    This reverts commit 65251820.

commit 7d3740549fa4dfa62e3761f8d4bc6d6d441256e7
Author: Aaron Patterson <aaron.patterson@gmail.com>
Date:   Fri Feb 14 11:25:25 2014 -0800

    Revert "add a more restricted codepath for templates fixes #13390"

    This reverts commit 2875b4a6.

commit 525df0af1001918986cdfce59539fd2d52c4f32c
Author: Aaron Patterson <aaron.patterson@gmail.com>
Date:   Fri Feb 14 11:25:11 2014 -0800

    Revert "add a send so `apply` can be called.  Fixes #13510"

    This reverts commit c5034d60.

Rename allowed options to :marshal and :json, for custom serializers
only allow the use of custom classes.

MessageEncryptor has :serializer option, where any serializer object can
be passed. This commit make it possible to set this serializer from configuration
level.

There are predefined serializers (:marshal_serializer, :json_serialzier)
and custom serializer can be passed as String, Symbol (camelized and
constantized in ActionDispatch::Session namepspace) or serializer object.

Default :json_serializer was also added to generators to provide secure
defalt.

This Adds helpers(jruby_skip & rbx_skip). In Future, Plan is to use
these helpers instead of calls directly to
RUBY_ENGINE/RbConfig/JRUBY_VERSION

Spring makes extensive use of Process.fork, so won't be able to provide
JRuby Support, hence skip these tests on JRuby.

Kudos to @zzak for taking over SDoc and make it work with RDoc 4.

in JRuby FileUtils do not change
current dir when moving files

fixes tests for JRuby

Since we are using assert_no_match, if we change the code before
changing the tests, the tests will still pass and the assertion will
become useless

We were asserting if `//= turbolinks` was not present while the correct is
asserting that `//= require turbolinks` is not present.

that skips it.

It can be skipped adding `add_gem_entry_filter { |gem| gem.name != "turbolinks" }` to the template.

See #12475

If people are on rbx they will get the desired gem

Added test for jbuilder and web-console inclusion.

Added README.rdoc for test default files

Commit 0417bc83 add the coffee-rails and javascript runtime gems even
when passing the --skip-javascript option but this is not the desired
behavior.

Also remove all javascript related stuff in the generated application
such as the vendor/assets/javascripts folder.

The application name is used to fill the `database.yml` and
`session_store.rb` files ; previously, if the provided name contained
whitespaces, it led to unexpected names in these files.

Since Shellwords.escape adds backslashes to escape spaces, the app_name
should remove them and replace any space with an underscore (just like
periods previously).

Also improve the assert_file helper to work with paths containing spaces
using String#shellescape.