Add test for ActiveRecord::Relation YAML serialization, for #5303 issue
Improve Errors when Controller Name or Action isn't specfied

These errors occur when, there routes are wrongly defined.

example, the following line would cause a missing :action error

    root "welcomeindex"

Mostly beginners are expected to hit these errors, so lets improve the error message a bit to make their learning experience bit better.
Merge pull request #12749 from iantropov/issue_5303

Add test for ActiveRecord::Relation YAML serialization, for #5303 issue
Merge pull request #12740 from gaurish/patch-1

Improve Errors when Controller Name or Action isn't specfied
Remove order attribute from collector

Ruby 1.8 legacy. Since 1.9 hash preserves insertion order. No need for additional array to achieve this
Merge pull request #12838 from strzalek/remove_mime_type_order_var

Remove @order attribute from collector
variants (wip)
Fix few tests
Do not process variant on render
Check if there's request object first
Fix test
Add tests for variants dsl
Revise tests for variants
Move variant to Mime::Type