Switch to psr-4 autoloading, closes #323

composer.json

@@ -34,7 +34,7 @@
         "aws/aws-sdk-php": "Allow sending log messages to AWS services like DynamoDB"
     },
     "autoload": {
-        "psr-0": {"Monolog": "src/"}
+        "psr-4": {"Monolog\\": "src/Monolog"}
     },
     "extra": {
         "branch-alias": {

tests/bootstrap.php

@@ -10,6 +10,6 @@
  */
 
 $loader = require __DIR__ . "/../vendor/autoload.php";
-$loader->add('Monolog\\', __DIR__);
+$loader->addPsr4('Monolog\\', __DIR__.'/Monolog');
 
 date_default_timezone_set('UTC');