* Adds segment for device model

and segmented visitor log link to device model report

* update tests

* submodule update

* update icon submodule

* fix UI tests

* fix system tests

* fix another UI test

* Fix system test

* move old brand icons to piwik icons

* update submodule

* fix some tests

* update submodule

* fix another test

* Updates screenshots

* update UI test screenshots

* update system test files

* use new device icons

former plugins/DevicesDetection/images/screens

* replace normal.png with desktop.png in tests

* fix most tests

* submodule updates

* update screenshots

* update exptected test files

* Fix tests

* Fixed custom dimension tests

* Contents plugin tests

* System tests: we now use PNG images

* System tests: we now use PNG images

* always persist visitor property if it's dimension implements `onAnyGoalConversion` event

* small code improvements

* adds some tests to prove converted goals are processed for device type / model / brand

* update tests

Split up UserSettings BC (move request forwarding to appropriate plugins) & split up the tests for that BC.

Re-add backwards compatibility for URLs using old UserSettings plugin + add test coverage so BC break will be detected in the future.