[#5179]
Signed-off-by: NSantiago Pastorino <santiago@wyeworks.com>

amended rails upgrade plugin instructions to be rails 2.3.x compatible instead of former rails 3 format

adding documentation regarding time_zone_aware_attributes and skip_time_zone_conversion_for_attributes

First step to merge Rails and Rack session stores. Rack always expects to receive the SID since it may have different behavior if the SID is nil.

This reverts commit e210895b.

I am working on removing all traces of superclass_delegating_accessor from rails code base.

https://rails.lighthouseapp.com/projects/8994/tickets/2914-superclass_delegating_accessor-needs-to-be-deprecated-nicely

This reverts commit 1c030a3c.

adding comment specifying that cattr_accessor also supports instance_write and instance_rader option

fixed joining of attributes when using find_or_create_by with multiple attributes through an association
Signed-off-by: NSantiago Pastorino <santiago@wyeworks.com>

Add a header that tells Internet Explorer (all versions) to use the best available standards support. This ensures that IE doesn't go into quirks mode because it has been blacklisted by too many users pressing the incompatible button. It also tells IE to use the ChromeFrame renderer, if the user has installed the plugin.

This guarantees that the best available standards support will be used on the client.