This reverts commit aeb228c5.

Reason: The links are meant to be consumed in the api and not on GitHub.

Conflicts:
	guides/source/engines.textile

This reverts commit 0a35acb8.

Reason: Let's cross the bridge when we reach there.

correction to server stop statement added

minor elsif/else typo fix

https://github.com/lifo/docrails/commit/bb23d6fb005edaf25f5b294f9215429fb44b3f3d

Fix typo in "dasherize" description

Unnecessary uniqueness & force mapping has been removed at BacktraceClea...

add type option to atom feed entry builder

This reverts commit c46374a9.

Reason: Changed engines guide not to use a css tag. <plain> will do
just fine.

In case `source_roout` is not set, `default_source_root` is used,
which includes also `templates` directory. If there is no `templates`
directory, `default_source_root` is not available and USAGE will not
be displayed. USAGE should be also checked based on default
directory excluding `templates`.

closes #5672

Tidy up cookies.rb a bit

warning removed: `&' interpreted as argument prefix

  # File lib/rack/response.rb, line 114
114:       def successful?;    @status >= 200 && @status < 300;       end