Rework tests structure. Upgrade codeception to 2.5.3. Merge params configuration into app configuration.

common/tests/fixtures/data/mojang-usernames.php

@@ -0,0 +1,23 @@
+<?php
+return [
+    'ErickSkrauch' => [
+        'username' => 'ErickSkrauch',
+        'uuid' => '3e3ee6c35afa48abb61e8cd8c42fc0d9',
+        'last_pulled_at' => 1461429129,
+    ],
+    'Notch' => [
+        'username' => 'Notch',
+        'uuid' => '069a79f444e94726a5befca90e38aaf5',
+        'last_pulled_at' => 1461429207,
+    ],
+    'not-exists' => [
+        'username' => '100_not_exists',
+        'uuid' => 'f8d4ac1fb24d423483d619832b5d475c',
+        'last_pulled_at' => 1461433981,
+    ],
+    'uuid-changed' => [
+        'username' => 'jeb',
+        'uuid' => 'ef4c8352cecc417bbcae32f1f3e2828b',
+        'last_pulled_at' => 1461434315,
+    ],
+];