Prepare 241 (#4904)

* updates to composer * updated changelog * fixed installing pecl modules * * Added documentation for `callArtisan` * Fixed warning tests for PHPUnit 5.6 * fixed travis builds * fixed WebDriver tests

Author: DavertMik

tests/data/app/db

@@ -1 +1 @@
-a:1:{s:6:"params";a:0:{}}
+a:0:{}