default to null as respect_cache_headers is now deprecated

Author: alcohol

DependencyInjection/Configuration.php

@@ -370,7 +370,7 @@ private function addSharedPluginNodes(ArrayNodeDefinition $pluginNode, $disableA
                         ->addDefaultsIfNotSet()
                         ->children()
                             ->scalarNode('default_ttl')->defaultValue(0)->end()
-                            ->scalarNode('respect_cache_headers')->defaultTrue()->end()
+                            ->scalarNode('respect_cache_headers')->defaultNull()->end()
                         ->end()
                     ->end()
                 ->end()

Tests/Unit/DependencyInjection/ConfigurationTest.php

@@ -37,7 +37,7 @@ class ConfigurationTest extends AbstractExtensionConfigurationTestCase
                 'stream_factory' => 'httplug.stream_factory',
                 'config' => [
                     'default_ttl' => null,
-                    'respect_cache_headers' => true,
+                    'respect_cache_headers' => null,
                 ],
             ],
             'cookie' => [

composer.json

@@ -20,7 +20,7 @@
         "php-http/client-implementation": "^1.0",
         "php-http/message-factory": "^1.0.2",
         "php-http/client-common": "^1.2",
-        "php-http/cache-plugin": "^1.2",
+        "php-http/cache-plugin": "^1.3",
         "php-http/logger-plugin": "^1.0",
         "php-http/stopwatch-plugin": "^1.0",
         "symfony/options-resolver": "^2.8 || ^3.0",