Updated namespace

Fix issue #2

Author: Nyholm

composer.json

@@ -23,12 +23,12 @@
     },
     "autoload": {
         "psr-4": {
-            "Http\\Message\\": "src/"
+            "Http\\Message\\MultipartStream\\": "src/"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "tests\\Http\\Message\\": "tests/"
+            "tests\\Http\\Message\\MultipartStream\\": "tests/"
         }
     },
     "scripts": {

src/MimetypeHelper.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Http\Message\MultipartStream;
 
 /**
  * This class helps to find the proper mime types. The source of this file is taken

src/MultipartStreamBuilder.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Http\Message;
+namespace Http\Message\MultipartStream;
 
 use GuzzleHttp\Psr7\AppendStream;
 use Http\Discovery\StreamFactoryDiscovery;

tests/FunctionTest.php

@@ -1,8 +1,8 @@
 <?php
 
-namespace tests\Http\Message;
+namespace tests\Http\Message\MultipartStream;
 
-use Http\Message\MultipartStreamBuilder;
+use Http\Message\MultipartStream\MultipartStreamBuilder;
 use Zend\Diactoros\Stream;
 
 /**