init kevacoin connection

example/config.json

@@ -1,5 +1,13 @@
 {
-    "index":
+    "kevacoin":
+    {
+        "protocol":"http",
+        "host":"127.0.0.1",
+        "port":9992,
+        "username":"",
+        "password":""
+    },
+    "manticore":
     {
         "name":"kvazar",
         "host":"127.0.0.1",

src/index.php

@@ -1,9 +1,28 @@
 <?php
 
+// Prevent multi-thread execution
+$semaphore = sem_get(
+    crc32(__DIR__), 1
+);
+
+if (false === sem_acquire($semaphore, true))
+{
+    exit(
+        _('Process locked by another thread!')
+    );
+}
+
 // Load dependencies
 require_once __DIR__ . '/../vendor/autoload.php';
 
 // Init config
+if (!file_exists(__DIR__ . '/../config.json'))
+{
+    exit(
+        _('Config not found!')
+    );
+}
+
 $config = json_decode(
     file_get_contents(
         __DIR__ . '/../config.json'
@@ -11,9 +30,44 @@ $config = json_decode(
 );
 
 // Init index
+try
+{
     $index = new \Kvazar\Index\Manticore(
-    (string) $config->index->name,
-    (array)  $config->index->meta,
-    (string) $config->index->host,
-    (int)    $config->index->port
+        (string) $config->manticore->name,
+        (array)  $config->manticore->meta,
+        (string) $config->manticore->host,
+        (int)    $config->manticore->port
+    );
+}
+
+catch (Exception $exception)
+{
+    exit(
+        print_r(
+            $exception,
+            true
+        )
+    );
+}
+
+// Init kevacoin
+try
+{
+    $kevacoin = new \Kevachat\Kevacoin\Client(
+        (string) $config->kevacoin->protocol,
+        (string) $config->kevacoin->host,
+        (int)    $config->kevacoin->port,
+        (string) $config->kevacoin->username,
+        (string) $config->kevacoin->password
+    );
+}
+
+catch (Exception $exception)
+{
+    exit(
+        print_r(
+            $exception,
+            true
+        )
     );
+}