Add some error state pages and installer fixes

modules/Installer/Http/Controllers/InstallerController.php

@@ -56,7 +56,7 @@ class InstallerController extends AppBaseController
             $message = 'Failed! ' . $e->getMessage();
         }
 
-        return view('installer::flash/message', [
+        return view('installer::flash/dbtest', [
             'status' => $status,
             'message' => $message,
         ]);

modules/Installer/Resources/views/stubs/env.blade.php

@@ -6,11 +6,13 @@
 APP_ENV={!! $APP_ENV !!}
 APP_URL=http://localhost
 APP_SKIN=default
-VACENTRAL_API_KEY=
 APP_KEY=base64:{!! $APP_KEY !!}
 APP_DEBUG=true
 APP_LOCALE=en
 
+PHPVMS_INSTALLED=true
+VACENTRAL_API_KEY=
+
 APP_LOG=daily
 APP_LOG_LEVEL=debug
 APP_LOG_MAX_FILES=3

modules/Installer/Services/EnvironmentService.php

@@ -51,7 +51,7 @@ class EnvironmentService
         if(\extension_loaded('apc')) {
             $opts['CACHE_DRIVER'] = 'apc';
         } else {
-            $opts['CACHE_DRIVER'] = 'file';
+            $opts['CACHE_DRIVER'] = 'array';
         }
 
         return $opts;