Generate 3.0.0 branch for a future php-saml for php 7.X, namespaces and xmlseclibs loaded by composer

Author: pitbulk

composer.json

@@ -2,7 +2,7 @@
     "name": "onelogin/php-saml",
     "description": "OneLogin PHP SAML Toolkit",
     "license": "MIT",
-    "version": "2.10.7",
+    "version": "3.0.0",
     "homepage": "https://onelogin.zendesk.com/hc/en-us/sections/200245634-SAML-Toolkits",
     "keywords": ["saml", "saml2", "onelogin"],
     "autoload": {