Add PHP 7.4 support (#464)

* Add PHP 7.4 to build matrix

* DB fix

* YAML parser fix in test data

* Show versions

* Package updates

* Track used ICAOs

* 7.4 METAR parsing fix

* METAR parser fix

* Formatting

* Add meters to response units

* Call instance for unit conversion

* Return value

* Catch exception for unknown quantity

* Comment fix

* Formatting

* METAR parsing fixes on PHP 7.4

* Package updates

* More random airport ID

* More random airport ID

* Properly disable toolbar

* Semver written out to version file

* Use dev as default identifier

modules/Installer/Http/Controllers/InstallerController.php

@@ -62,6 +62,8 @@ class InstallerController extends Controller
         $this->reqSvc = $reqSvc;
         $this->seederSvc = $seederSvc;
         $this->userService = $userService;
+
+        app('debugbar')->disable();
     }
 
     /**