fix(release): fix checkout CHANGELOG.md from origin/master

* update `./tools/releases.json` with missing release entries

Author: ThomasBurleson

release

@@ -123,7 +123,7 @@
 
     exec(`git fetch --all --tags ${origin}`);
     // Do not use last tag's CHANGELOG; use one from master
-    //exec(`git checkout v${lastMajorVer} -- CHANGELOG.md`);
+    exec(`git co origin/master -- CHANGELOG.md`);
     exec(`gulp changelog --sha=$(git rev-list -n 1 v${lastMajorVer})`);
 
     done();

tools/releases.json

@@ -1,7 +1,10 @@
 {
   "versions": [
+    "2.0.0-beta.5",
+    "2.0.0-beta.4",
+    "2.0.0-beta.3",
     "2.0.0-beta.2",
     "2.0.0-beta.1"
   ],
-  "latest": "2.0.0-beta.2"
+  "latest": "2.0.0-beta.5"
 }