Weekly release v0.2.23: React improvements and several bug fixes

Summary:
Bump version for new release:
* A lot of react native work
* Fixes #1409
* add --emitConcreteModel option to emit concrete model from abstract model.
* Fixes a bug in delayInitializations

Reviewed By: hermanventer

Differential Revision: D6945135

fbshipit-source-id: c93fd2c13d115de8d4e5ef93dd82c291f5597cb5

package.json

@@ -1,6 +1,6 @@
 {
   "name": "prepack",
-  "version": "0.2.23-alpha.0",
+  "version": "0.2.23",
   "description": "Execute a JS bundle, serialize global state and side effects to a snapshot that can be quickly restored.",
   "homepage": "https://github.com/facebook/prepack",
   "repository": {