Fix whitespace in generated ability.rb

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updates src url to use https

Fix docs typo [ci skip]

Fixed a typo in README.rdoc [ci skip]

https://github.com/ryanb/cancan/blob/master/lib/cancan/controller_resource.rb#L129

Comment typo fixed

porting #668 to master branch

helps prevent man in the middle attacks

Add docs for id_param option of load_resource

Fixed load_resource "find_by" in mongoid resources

added support for nested join conditions

Working around a SQL Injection Vulnerability in Ruby on Rails (CVE-2012-5664)

Added in https://github.com/ryanb/cancan/pull/425 but lacked documentation

Issue #687: cancan inserting "AND (NULL)" at the end of sql

Ensure that empty conditions does not trigger unmergeable conditions

Refold generated Ability comments at 80 characters

[ci skip]

A lot of people still fold their code at 80 characters, so it is
nice to have generated code consider this.

Latest versions of Mongoid supports "find_by" query, but syntax
is slightly different than Active Record.

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Namespaced Controllers not building new resource from params(regression 1.6.8)

Segmentation fault on aliasing

Fix for issue #560