Update the filestore documentation for clear
[ci skip]
Add documentation for #clear on certain Store classes
[ci skip
Add documentation for FileStore#increment and #decrement
[ci skip]
Array#to_formatted_s does not call each element's to_s anymore

Array#to_s calls each element's inspect since ruby 1.9
Remove ambiguity with pluralizations and I18n keys used for association restrict_dependent_destroy errors
Using ruby 1.9 syntax [ci skip]
Rack Sendfile is coming as default now
Added Rack::Sendfile in rake about [ci skip]
Enhancing readability of options for delegate method
Merge branch 'master' of github.com:rails/docrails
Guides fixed typo in index.html.erb file [ci skip]
New output for scaffold generate [ci skip]
fixes the test case of that plugins
Merge pull request #159 from rajcybage/my_fix

fixes the test case of that plugins
document the Rails::ConsoleMethods#helper and #controller methods

Closes rails/rails#11362
Revert "Fix SyntaxError in guides sample code"

This reverts commit f573df32d43c413a5098721ba6151ff190c23c6c.

The original idea of this documentation was to showcase the feature
where you can remove some only queries attributes with a single
key-value pair.
use the appropriate RDoc code markup

Thanks @fxn
remove duplication in test
Merge pull request #11491 from erichkist/ek-revert-unscope-patch

Revert "Fix SyntaxError in guides sample code"
Merge pull request #11492 from maratvmk/concern_test

remove duplication in concern_test