Update namespaces

Author: battye

composer.json

@@ -8,10 +8,10 @@
   },
   "autoload": {
     "psr-4": {
-      "Battye\\ArrayParser\\": "src"
+      "battye\\array_parser\\": "src"
     }
   },
   "require-dev": {
     "symfony/phpunit-bridge": "^4.1"
   }
-}
+}

src/parser.php

@@ -5,7 +5,7 @@
  * Modified by battye, originally from: http://jsteemann.github.io/blog/2015/06/16/parsing-php-arrays-with-php/
  */
 
-namespace Battye\ArrayParser;
+namespace battye\array_parser;
 
 class parser
 {

src/tokens.php

@@ -5,7 +5,7 @@
  * Modified by battye, originally from: http://jsteemann.github.io/blog/2015/06/16/parsing-php-arrays-with-php/
  */
 
-namespace Battye\ArrayParser;
+namespace battye\array_parser;
 
 class tokens
 {

tests/ArrayParserTest.php

@@ -4,8 +4,8 @@
  * Files in the files/ directory are straight copies of files from phpBB with varying complexity of arrays.
  */
 
-use Battye\ArrayParser\parser;
-use Battye\ArrayParser\tokens;
+use battye\array_parser\parser;
+use battye\array_parser\tokens;
 
 class ArrayParserTest extends \PHPUnit\Framework\TestCase
 {