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

Signed-off-by: NPratik Naik <pratiknaik@gmail.com>

Updating deprecated API to sanitize old style attachments hash to work with new mail.attachments method

This reverts commit f936a1f1.

Conflicts:

	activerecord/lib/active_record.rb
	activerecord/lib/active_record/base.rb

Revert "Fixed: #without_typecast should only disable typecasting on the duplicated attributes" [#3387 state:open]

This reverts commit 28319964.

Reason :

  It's not generating attribute methods properly, making object.column 5x slower.

Make filter parameters based on request, so they can be modified for anything in the middleware stack.