improvements to the rlm_endpoint docs
more explanation for list parameters and how its used here.
explain more about the error_response that will be send when an error happens when we try to send an email.
Add table header syntax for parameters
Updates Amazon Return Orders documentation.
Fixes Return Orders sample JSON response
Adds Return Specific Order documentation
Finish terminology guide
Fixed issues with documentation titles, etc.
Fixed developer titles
Fixed more integrator refs and mis-capitalized terns
Remove capistrano dependency

This is now taken care of by the separate guides_deploy repo
Updates the link to ISO_8601 for the wikipedia in English.
Fixed some footer links
Updated documentation footer contents to match the current website
Update checkout_flow example to match current Spree
Remove implementation details from checkout flow dsl

Those implementation details are not valid anymore due to changes after
split shipments
Use subdirectories (app/controllers/spree and app/models/spree) as preferred place for decorators

h/t JoshuaPaling
Deleting reduntant file so that the right one is served
update ql messages