feat (datafile management): Update js-sdk-datafile-manager dependency to v0.3.0 (#270)

Summary:

Update to js-sdk-datafile-manager v0.3.0

Test plan:

Compatibility suite, manual testing

Author: mjc1283

packages/optimizely-sdk/CHANGELOG.MD

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [Unreleased]
 Changes that have landed but are not yet released.
 
+### New Features
+- Added 60 second timeout for all datafile requests
+
+### Changed
+- Updated datafile request polling behavior:
+  - Start update interval timer immediately after request
+  - When update interval timer fires during request, wait until request completes, then immediately start next request
 - Update TypeScript definitions to account for new methods (`onReady`, `close`) and new properties on object accepted by createInstance (`datafileOptions`, `sdkKey`)
 
 ## [3.2.0-alpha] - April 26nd, 2019

packages/optimizely-sdk/package-lock.json

@@ -32,7 +32,7 @@
   },
   "homepage": "https://github.com/optimizely/javascript-sdk/tree/master/packages/optimizely-sdk",
   "dependencies": {
-    "@optimizely/js-sdk-datafile-manager": "^0.2.0",
+    "@optimizely/js-sdk-datafile-manager": "^0.3.0",
     "@optimizely/js-sdk-event-processor": "^0.2.0",
     "@optimizely/js-sdk-logging": "^0.1.0",
     "@optimizely/js-sdk-utils": "^0.1.0",