version bump

Author: lemire

package.json

@@ -6,7 +6,7 @@
     "bitset",
     "performance"
   ],
-  "version": "0.4.2",
+  "version": "0.5.0",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/lemire/TypedFastBitSet.js.git"