(Needs consensus that these are appropriate defaults.)

This reverts commit 66604b2e.

Conflicts:
	actionmailer/lib/action_mailer.rb

Signed-off-by: NCarl Lerche <carllerche@mac.com>

Signed-off-by: NCarl Lerche <carllerche@mac.com>

For some reason the current class_inheritable_accessor does not play nice with included hooks. class_inheritable_accessor will be revised shortly.

Relation#count should look for projections in chained relations and perform the count on the given column
Signed-off-by: NPratik Naik <pratiknaik@gmail.com>

Check to see if the plugin object responds to load_tasks (vendor/plugin/* does not yet) Fixes Sam Ruby's tests.

Rename Relation#create_new_relation to spawn and refactor preload/eagerload associations using attr_writer