This reverts commit 9d396ee8, reversing
changes made to fa2bfd83.

Reason: the change broke the build.

Add a proxy_association method to association proxies, which can be called by association extensions to access information about the association. This replaces proxy_owner etc with proxy_association.owner.

This reverts commit 04cc446d.

I reverted it because apparently we want to use: select([:a, :b])
instead of select(:a, :b), but there was no tests for that form.

Simplify the test by using id and name. `id` will be the only real sort criteria in any case as it's unique.

Reason: The hash form is secure, and preferred over the array form if possible.

This reverts commit 6dc74959.

make the warning clear about the effect of using validates_associated on both sides on an association.

American English(according to Weber)

fix behavior when after_initialize is defined and a block is passed to Base.create

This conditions is required to work with database create task. 1.9.2 is having a bug with "Calling return within begin still executes else".