- cookies can be set using string or symbol keys
- cookies are preserved across calls to get, post, etc.
- cookie names and values are escaped
- cookies can be cleared using @request.cookies.clear

[#6272 state:resolved]

Signed-off-by: NAndrew White <andyw@pixeltrix.co.uk>

Signed-off-by: NAndrew White <andyw@pixeltrix.co.uk>

* simplifies some sentences
* use a more neutral language with less you/yours

Pointing out that dynamic_form plugin must be installed to be able to use error_messages and error_messages_for view helpers.

Clarify comment by removing french reference ('a la'). Should improve readability for non-native english speakers.

implements ActiveRecord::Base.connection_config to be able to check the configuration of the current connection at runtime

When preloading has_and_belongs_to_many associations, we should only instantiate one AR object per actual record in the database. (Even when IM is off.)

reverted tests deleted by 080345ba, refactored implementations should not invalidate the validations
Signed-off-by: NSantiago Pastorino <santiago@wyeworks.com>

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

[#4551 state:committed]
Signed-off-by: NSantiago Pastorino <santiago@wyeworks.com>