fix escape_javascript for unicode character \u2028.

Fix CI and rename 1 misleading test case.

Fixes #2598

added link to url_for in documentation

Bump sprockets to 2.0.0.beta.14

Updated the docs for the has_many :finder_sql option

ActionController::Redirecting : fix docs typo

Document debugging assets set by default for dev and test envs on guides

actionpack/lib/action_controller/base.rb: docs typo

Minor edit in the params wrapper api docs

Fix assumption of primary key name in PredicateBuilder subquery.

Updated the docs for the has_many :finder_sql option to reflect changes made in #a7e19b30, i.e. the use of Procs when interpolation of the SQL is required.

Minor change in the 3.1 release notes

Debug assets by default in development and test environments

Mailer guide fixes

Regexps have a construct to express alternation of characters, which
is character classes. In addition to being the most specific idiom to
write this pattern, it reads better without the backslashes. Also, it
is better not to use a capture if none is needed. As a side-effect of
these changes, the gsub is marginally faster, but speed is not the
point of this commit.

Cleanup application.css

Updates to remove extra whitespaces and notably fix a whitespace issue with ajax_on_rails causing a code block not to render the entire block properly.

Fix spacing in plugins.textile to fix html rendering and remove extra whitespace from security.textile