Add RELEASES.md for each package, bump tool-cache to publish (#67)

packages/core/RELEASES.md

@@ -0,0 +1,5 @@
+# @actions/core Releases
+
+### 1.0.0
+
+- Initial release

packages/exec/RELEASES.md

@@ -0,0 +1,5 @@
+# @actions/exec Releases
+
+### 1.0.0
+
+- Initial release

packages/github/RELEASES.md

@@ -0,0 +1,5 @@
+# @actions/github Releases
+
+### 1.0.0
+
+- Initial release

packages/io/RELEASES.md

@@ -0,0 +1,5 @@
+# @actions/io Releases
+
+### 1.0.0
+
+- Initial release

packages/tool-cache/RELEASES.md

@@ -0,0 +1,10 @@
+# @actions/tool-cache Releases
+
+### 1.1.0
+
+- [Add zip and unzip for macOS](https://github.com/actions/toolkit/pull/49)
+- [Support custom flags for `extractTar`](https://github.com/actions/toolkit/pull/48)
+
+### 1.0.0
+
+- Initial release

packages/tool-cache/package-lock.json

@@ -1,6 +1,6 @@
 {
 	"name": "@actions/tool-cache",
-	"version": "1.0.0",
+	"version": "1.1.0",
 	"lockfileVersion": 1,
 	"requires": true,
 	"dependencies": {

packages/tool-cache/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@actions/tool-cache",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "Actions tool-cache lib",
   "keywords": [
     "exec",