* Adds MarketingCampaignsReporting as submodule

* update ui tests

* Add LoginLdap plugin as submodule

* Adding LoginLdap submodule

* Fixed some tests

* submodule update

* Disable LoginLdap plugin by default in tests

* update submodule

* submodule update

* update screenshots

* update submodule

* add icons submodule

* replace path

* change submodule url

* fix JSONTest

* fix integration tests

* update icon submodules

* fix preg_match

* fix remaining system tests

* better match for non dist icon files

* fix .gitmodules

* update icon submodule

* Fixed custom dimension test

* Do not completely fail when GD not enabled

* Fix http test + refactor checklist

* Refactored the code into a method

* Changed icon path refs https://github.com/piwik/piwik/pull/11383

* System tests

* Update valid UI tests

* Fix integration test

During tests, we shall load plugins that are in the .gitmodule file (official plugins found in marketplace),
as well as loading those that are in the global.ini.php (official plugins bundled in piwik).

Refs #514 Adding HttpAuth plugin as submodule, now hosted at: https://github.com/piwik/plugin-LoginHttpAuth