Fix mkdir mode in Driver and implementations (#27)

Author: mmenozzi

lib/BlockingDriver.php

@@ -262,7 +262,7 @@ public function unlink(string $path): Promise {
     /**
      * {@inheritdoc}
      */
-    public function mkdir(string $path, int $mode = 0644, bool $recursive = false): Promise {
+    public function mkdir(string $path, int $mode = 0777, bool $recursive = false): Promise {
         return new Success((bool) @\mkdir($path, $mode, $recursive));
     }
 

lib/Driver.php

@@ -151,7 +151,7 @@ public function unlink(string $path): Promise;
      * @param bool $recursive
      * @return \Amp\Promise
      */
-    public function mkdir(string $path, int $mode = 0644, bool $recursive = false): Promise;
+    public function mkdir(string $path, int $mode = 0777, bool $recursive = false): Promise;
 
     /**
      * Delete a directory.

lib/EioDriver.php

@@ -349,7 +349,7 @@ private function onUnlink($data, $result, $req) {
     /**
      * {@inheritdoc}
      */
-    public function mkdir(string $path, int $mode = 0644, bool $recursive = false): Promise {
+    public function mkdir(string $path, int $mode = 0777, bool $recursive = false): Promise {
         $deferred = new Deferred;
         $this->poll->listen($deferred->promise());
 

lib/ParallelDriver.php

@@ -142,7 +142,7 @@ public function readlink(string $path): Promise {
     /**
      * {@inheritdoc}
      */
-    public function mkdir(string $path, int $mode = 0644, bool $recursive = false): Promise {
+    public function mkdir(string $path, int $mode = 0777, bool $recursive = false): Promise {
         return new Coroutine($this->runFileTask(new Internal\FileTask("mkdir", [$path, $mode, $recursive])));
     }
 

lib/UvDriver.php

@@ -352,7 +352,7 @@ public function unlink(string $path): Promise {
     /**
      * {@inheritdoc}
      */
-    public function mkdir(string $path, int $mode = 0644, bool $recursive = false): Promise {
+    public function mkdir(string $path, int $mode = 0777, bool $recursive = false): Promise {
         $deferred = new Deferred;
         $this->poll->listen($deferred->promise());