update JShrink (followup) (matomo-org#14011)

* update JShrink

* remove old library

* Update submodule.

composer.json

@@ -28,7 +28,7 @@
         "twig/twig": "~1.0",
         "leafo/lessphp": "~0.5.0",
         "symfony/console": "~2.6.0",
-        "tedivm/jshrink": "~0.5.1",
+        "JShrink": "=1.3.1",
         "mustangostang/spyc": "~0.5.0",
         "piwik/device-detector": "~3.0",
         "piwik/decompress": "~1.0",
@@ -84,6 +84,35 @@
                     "reference": "master"
                 }
             }
+        },
+        {
+            "type": "package",
+            "package": {
+                "name": "JShrink",
+                "description": "Javascript Minifier built in PHP",
+                "keywords": ["minifier","javascript"],
+                "homepage": "http://github.com/tedious/JShrink",
+                "type": "library",
+                "license": "BSD-3-Clause",
+                "version": "1.3.1",
+                "authors": [
+                    {
+                        "name": "Robert Hafner",
+                        "email": "tedivm@tedivm.com"
+                    }
+                ],
+                "require": {
+                    "php": "*"
+                },
+                "autoload": {
+                    "psr-0": {"JShrink": "src/"}
+                },
+                "source": {
+                    "type": "git",
+                    "url": "https://github.com/tedious/JShrink",
+                    "reference": "v1.3.1"
+                }
+            }
         }
     ],
     "scripts": {