Merge branch '2.0.x' into 1.0.x

# Conflicts:
#	composer.json
#	src/Tag/DebugRequestTag.php

Author: allflame

composer.json

@@ -12,7 +12,7 @@
     "symfony/console": "~2 || ~3",
     "symfony/http-kernel": "~2 || ~3",
     "symfony/dependency-injection": "~2 || ~3",
-    "code-tool/jaeger-client-php": "~1.1"
+    "code-tool/jaeger-client-php": "~1.4"
   },
   "require-dev": {
     "php-ds/php-ds": "@stable",

src/Bridge/RequestSpanListener.php

@@ -4,7 +4,6 @@
 use Jaeger\Http\HttpCodeTag;
 use Jaeger\Http\HttpMethodTag;
 use Jaeger\Http\HttpUriTag;
-use Jaeger\Symfony\Tag\DebugRequestTag;
 use Jaeger\Symfony\Tag\SymfonyComponentTag;
 use Jaeger\Symfony\Tag\SymfonyVersionTag;
 use Jaeger\Symfony\Tag\TimeMicroTag;
@@ -76,10 +75,7 @@ public function onRequest(GetResponseEvent $event)
                 ->addTag(new TimeMicroTag($startTime))
                 ->start($startTime);
         }
-        if ($requestSpan->getContext()->isDebug()
-            && ($requestId = (string)$requestSpan->getItem('debug.request'))) {
-            $requestSpan->addTag(new DebugRequestTag($requestId));
-        }
+
         $this->spans->push($requestSpan);
 
         return $this;