Getting rid of a few other vestiges of rails.png.

We don't actually need a rails.png in the AP fixtures, the tests
that use it don't actually try to load the file.

We also don't need to get rid of it with the dummy reset either.

Finally, it's not needed in the sample application that's included
with the Rails Guides.
true/false => truthy falsy
Per #9999 revert the revert changing so columns are only tested for empty? as opposed to blank?

This is both faster and more correct, added tests to make sure this is not reverted again.
Added a section on Rails Controller naming conventions.
Merge branch 'master' of github.com:lifo/docrails
Merge pull request #10063 from SamSaffron/master

Per #9999 revert blank? to empty?
Fix grammatical error on JS helper warning message

Add changelog entry

Delete changelog
Merge pull request #10064 from thenickcox/fix_grammatical_error

Fix grammatical error on JS helper warning message [ci skip]
Add block support for the  helper
adjust config.ru tempalte used in the rails on rack guide
remove broken links from reference section in debugging guide.
remove trailing whitespace from AR Basics guide
link the Active Record pattern to the EAA Catalog
add `(association)`_type to schema convetions in AR basics guide.
fix formatting typo, + should be `
Move alias method near to the aliased one in collection proxy
fix regression in Mapper when `format:` was used in a `scope`.

Closes #10071

`#normalize_path!` depends on the options so we need to call
`#normalize_options!` first to make sure everything is set correctly.
Avoid running bundler on tests that don't need it
Remove comments about removing LegacyKeyGenerator in 4.1
Merge pull request #10072 from senny/10071_format_on_scope_block_is_ignored

fix regression in Mapper when `format:` was used in a `scope`.