Update deps

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
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         {
             "name": "composer/ca-bundle",
@@ -445,16 +445,16 @@
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             "name": "symfony/console",
-            "version": "v2.8.26",
+            "version": "v2.8.27",
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                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
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             "require": {
@@ -502,20 +502,20 @@
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             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2017-07-29T21:26:04+00:00"
+            "time": "2017-08-27T14:29:03+00:00"
         },
         {
             "name": "symfony/debug",
-            "version": "v2.8.26",
+            "version": "v2.8.27",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
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             "require": {
@@ -559,11 +559,11 @@
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             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2017-07-28T15:21:22+00:00"
+            "time": "2017-08-27T14:29:03+00:00"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v2.8.26",
+            "version": "v2.8.27",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
@@ -612,7 +612,7 @@
         },
         {
             "name": "symfony/finder",
-            "version": "v2.8.26",
+            "version": "v2.8.27",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
@@ -661,16 +661,16 @@
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.4.0",
+            "version": "v1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "f29dca382a6485c3cbe6379f0c61230167681937"
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-                "reference": "f29dca382a6485c3cbe6379f0c61230167681937",
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             "require": {
@@ -682,7 +682,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.4-dev"
+                    "dev-master": "1.5-dev"
                 }
             },
             "autoload": {
@@ -716,11 +716,11 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-06-09T14:24:12+00:00"
+            "time": "2017-06-14T15:44:48+00:00"
         },
         {
             "name": "symfony/process",
-            "version": "v2.8.26",
+            "version": "v2.8.27",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
@@ -874,22 +874,22 @@
         },
         {
             "name": "phpspec/prophecy",
-            "version": "v1.7.0",
+            "version": "v1.7.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "93d39f1f7f9326d746203c7c056f300f7f126073"
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                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
                 "php": "^5.3|^7.0",
-                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2",
+                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2|^4.0",
                 "sebastian/comparator": "^1.1|^2.0",
                 "sebastian/recursion-context": "^1.0|^2.0|^3.0"
             },
@@ -900,7 +900,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.6.x-dev"
+                    "dev-master": "1.7.x-dev"
                 }
             },
             "autoload": {
@@ -933,7 +933,7 @@
                 "spy",
                 "stub"
             ],
-            "time": "2017-03-02T20:05:34+00:00"
+            "time": "2017-09-04T11:05:03+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -1685,7 +1685,7 @@
         },
         {
             "name": "symfony/yaml",
-            "version": "v2.8.26",
+            "version": "v2.8.27",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",