Update helper.php
Update helper.php
Fix codestyle
Merge pull request #4690 from joomdonation/staging

Fix issue #4679: Sorting Joomla! available languages
Tweaks to JAdministratorHelperTest
Improving structure of FinderIndexer test suite
Make getMockDatabase signature match TestMockDatabaseDriver::create
Prefer the getMockDatabase API endpoint
Fixed test method name
Added @medium annotation
Reverting #4284 as it doubles some tabs (see  #4705)
Working on improving database test classes, fix bad test
Merge branch 'staging' of github.com:joomla/joomla-cms into staging
Merge pull request #4710 from nibra/test-annotations

Test annotations
Improved testcase for JModelLegacy (Fix #4709)
Merge branch 'staging' of github.com:joomla/joomla-cms into staging
Improvements in cms/application test classes
Add note about title/description to CONTRIBUTING
Fix issue #4702
Fix codestyle