Remove XMPP dependency

composer.json

@@ -20,7 +20,6 @@
         "christian-riesen/otp" : "1.4",
         "eluceo/ical": "0.8.0",
         "erusev/parsedown" : "1.6.0",
-        "fabiang/xmpp" : "0.6.1",
         "fguillot/json-rpc" : "1.0.3",
         "fguillot/picodb" : "dev-master",
         "fguillot/simpleLogger" : "1.0.0",

composer.lock

@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "efcec72049b0eb4e3f1e90163b6fbc23",
-    "content-hash": "c379b500a20d7025a0b872c7ec8837d3",
+    "hash": "8230f229ff6260e337d500aea1b42429",
+    "content-hash": "87b8db514c808c0775bd52ad72c1a71d",
     "packages": [
         {
             "name": "christian-riesen/base32",
@@ -201,64 +201,6 @@
             ],
             "time": "2015-10-04 16:44:32"
         },
-        {
-            "name": "fabiang/xmpp",
-            "version": "0.6.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/fabiang/xmpp.git",
-                "reference": "47fdbe4a60ef0e726c4aaf39d6eb57afd42915c8"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/fabiang/xmpp/zipball/47fdbe4a60ef0e726c4aaf39d6eb57afd42915c8",
-                "reference": "47fdbe4a60ef0e726c4aaf39d6eb57afd42915c8",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.3",
-                "psr/log": "~1.0"
-            },
-            "require-dev": {
-                "behat/behat": "~2.5",
-                "monolog/monolog": "~1.11",
-                "phpunit/phpunit": "~4.3",
-                "satooshi/php-coveralls": "~0.6"
-            },
-            "suggest": {
-                "psr/log-implementation": "Allows more advanced logging of the xmpp connection"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.0.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Fabiang\\Xmpp\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-2-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Fabian Grutschus",
-                    "email": "f.grutschus@lubyte.de",
-                    "homepage": "http://www.lubyte.de/",
-                    "role": "developer"
-                }
-            ],
-            "description": "Library for XMPP protocol (Jabber) connections",
-            "homepage": "https://github.com/fabiang/xmpp",
-            "keywords": [
-                "jabber",
-                "xmpp"
-            ],
-            "time": "2014-11-20 08:59:24"
-        },
         {
             "name": "fguillot/json-rpc",
             "version": "v1.0.3",