Add Brakeman::FindReturnValue
Add tests for scanning helper methods
Properly pass in env in FindReturnValue
FRV: Don't add empty returns
FRV: Don't return duplicate values
FRV: Handle if branches with nil return value
FRC: Try setting 'original_line' on values
Merge branch 'master' into simple_helper_scanning

Conflicts:
	test/apps/rails3.1/app/controllers/users_controller.rb
[WIP] Scan helper methods in controllers
Merge branch 'master' into simple_helper_scanning

Conflicts:
	test/apps/rails3.1/app/controllers/users_controller.rb
	test/apps/rails3.1/config/routes.rb
Add test for negative index in empty array
Fix handling negative indexes in array

especially empty arrays
Add tests for more Rails 3 routes
Support for `controller` blocks in Rails 3 routes
Simplify dealing with "controller#action" in routes
Handle `verb 'path', :to => :action` in routes
Forgot to add views for Rails 3 route tests
Add test for route hash shorthand 'path' => 'route'
Fix missed chance to use add_route_from_string
Add another test for negative array index