Set a specific libary version to ensure the suite of repos work in concert

during release v0.3.3

See: xmlsquad/xml-authoring-project#9

Author: john-arcus

composer.json

@@ -32,7 +32,7 @@
         "symfony/console": "^3.4",
         "symfony/filesystem": "^3.4",
         "symfony/yaml": "^3.4",
-        "xmlsquad/xml-authoring-library": "dev-master"
+        "xmlsquad/xml-authoring-library": "0.3.3"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.1"