bump to 1.0.5 for synchronous event fix

Author: evancz

elm.json

@@ -3,7 +3,7 @@
     "name": "elm/core",
     "summary": "Elm's standard libraries",
     "license": "BSD-3-Clause",
-    "version": "1.0.4",
+    "version": "1.0.5",
     "exposed-modules": {
         "Primitives": [
             "Basics",