To allow the use of prepared statements when changing schemas in
postgres, the schema search path is added to the sql key.

ruby193: String#prepend

Conflicts:

	actionpack/test/template/sprockets_helper_test.rb

If we don't have a primary key when we ask for it, it's better to fail
fast. Fixes GH #2307.

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

incorrect to_formatted_s example

:subdomain => false will remove all subdomains now. Closes #2025

Changing rake db:schema:dump to run :environment as well as :load_config, as running :load_config alone will lead to the dumper being run without including extensions such as those included in foreigner and spatial_adapter.

This reverses a change made here: https://github.com/rails/rails/commit/5df72a238e9fcb18daf6ab6e6dc9051c9106d7bb#L0L324

I'm assuming here that :load_config needs to be invoked separately from :environment, as it is elsewhere in the file for db operations, if not the alternative is to go back to "task :dump => :environment do".
Signed-off-by: NJosé Valim <jose.valim@gmail.com>

:subdomain can now be specified with a value of false in url_for, allowing for subdomain(s) removal from the host during link generation. Closes #2025

Use rack-cache 1.1

Versions prior to 1.1 delete the If-Modified-Since and If-Not-Modified headers when
config.action_controller.perform_caching is true. This has two problems:
 * unexpected inconsistent behaviour between development & production environments
 * breaks applications that use of these headers

Fix obviously breakage of Time.=== for Time subclasses