bug #1040 Update symfony/monolog-bundle to 3.x (pierredup)

This PR was squashed before being merged into the 2.7 branch (closes #1040).

Discussion
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Update symfony/monolog-bundle to 3.x

Currently when using Symfony >= 2.8.14 with monolog-bundle 2.11.3, no logs are shown in the profiler. When using monolog-bundle 2.12, the logs appear again.

I haven't tested on 2.7 yet, but this change should work fine for 2.7 as well.

Related: symfony/symfony#21014

Commits
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447f086 Update symfony/monolog-bundle to 3.x

Author: fabpot

composer.json

@@ -13,7 +13,7 @@
         "doctrine/doctrine-bundle": "~1.4",
         "symfony/assetic-bundle": "~2.3",
         "symfony/swiftmailer-bundle": "~2.3,>=2.3.10",
-        "symfony/monolog-bundle": "~2.11.3",
+        "symfony/monolog-bundle": "^3.0.2",
         "sensio/distribution-bundle": "~4.0",
         "sensio/framework-extra-bundle": "^3.0.2",
         "incenteev/composer-parameter-handler": "~2.0"