AS::BasicObject is used for proxy classes. Let's give it a less concerning
name. Also, it avoids the confusion with Ruby's Basic Object.

This will be used to derive keys from the secret and a salt, in order to allow us to
do things like encrypted cookie stores without using the secret for multiple
purposes directly.

Previously, ActiveSupport::Autoload was global and reserved
for usage inside Rails. This pull request makes it local,
fixes its test (they were not being run because its file
was named wrongly) and make it part of Rails public API.

This reverts commit 86c640a1, reversing
changes made to a0c2cfdc.

This is no longer used and actually raises an error when trying to load
`ActiveSupport::Dependencies`. I removed the related code and added the
`Dependencies` module to the autoload list.

  from Ruby stdlib.

Removed ActiveSupport::SecureRandom in favour of SecureRandom from the standard library. (It has been deprecated in the 3-1-stable branch.)

Replace references to ActiveSupport::SecureRandom with just SecureRandom, and require 'securerandom' from the stdlib when active support is required.

Signed-off-by: NSantiago Pastorino <santiago@wyeworks.com>

Add initial FileWatcher implementation. The Backend is just an abstract implementation, which will be inherited by backends that do the heavy lifting.

[#5739 state:committed]
Signed-off-by: NSantiago Pastorino <santiago@wyeworks.com>

Move Rails::LogSubscriber to ActiveSupport::LogSubscriber, allowing frameworks like ActiveRecord and ActiveResource to log outsude Rails::Application [#4816 state:resolved]

add lazy_load_hooks.rb, which allows us to declare code that
should be run at some later time. For instance, this allows
us to defer requiring ActiveRecord::Base at boot time purely
to apply configuration. Instead, we register a hook that should
apply configuration once ActiveRecord::Base is loaded.

With these changes, brings down total boot time of a
new app to 300ms in production and 400ms in dev.

TODO: rename base_hook

For performance reasons, you can no longer call html_safe! on Strings. Instead, all Strings are always not html_safe?. Instead, you can get a SafeBuffer from a String by calling #html_safe, which will SafeBuffer.new(self).

  * Additionally, instead of doing concat("</form>".html_safe), you can do
    safe_concat("</form>"), which will skip both the flag set, and the flag
    check.
  * For the first pass, I converted virtually all #html_safe!s to #html_safe,
    and the tests pass. A further optimization would be to try to use
    #safe_concat as much as possible, reducing the performance impact if
    we know up front that a String is safe.

Unvendor'd MemCache-Client.  Now requires the MemCache Client gem as a dependency - Don't forget to gem bundle buys and girls