Fix copyright year for actionview [ci skip]
Merge pull request #11144 from kennyj/fix_copyright_year

Fix copyright year for actionview [ci skip]
Removed "to:" from root directive and fixed typo ":to"

`root :to` is invalid syntax
`root to:` is valid, but the generated routes file omits `to:`
Re-remove deprecated API.
Merge pull request #11145 from JeffreyRodriguez/rails_4_root_directive_updates_and_fixes

Removed "to:" from root directive and fixed typo ":to"
Merge pull request #11146 from kennyj/re-remove-deprecated-api

Re-remove deprecated API.
Merge pull request #11141 from keydunov/master

Fix documentation for grouped_collection_select
Remove passing the prompt to grouped_options_for_select as an argument, because it was deprecated.
Merge pull request #11147 from kennyj/remove_prompt_argument_was_deprecated

Remove passing the prompt to grouped_options_for_select as an argument, because it was deprecated.
Remove deprecated attr_protected/accessible

Rails 4.0 has removed attr_protected and attr_accessible feature in favor of Strong Parameters.
Review AV changelog [ci skip]
Merge pull request #11149 from strzalek/remove-protected-attrs

Remove deprecated attr_protected/accessible
Asking user to declare post resource in guide [ci skip]
Merge pull request #11127 from jetthoughts/ask_user_add_line_to_routes_in_guide

Asking user to declare post resource in getting start guide
Remove deprecation warning from AttributeMethodsMatcher
Remove depreacted finders

They were deprecated in 4.0, planned to remove in 4.1
Merge pull request #11150 from jetthoughts/remove_depr_message_for_attribute_method_matcher

Remove deprecation warning from AttributeMethodsMatcher
adding additional plugins for debugging [ci skip]
Fix indentation
Merge pull request #11153 from strzalek/remove-ar-deprecated-finders

Remove depreacted finders