README and package.json version bumps

Author: shockey

README.md

@@ -22,7 +22,7 @@ The OpenAPI Specification has undergone 4 revisions since initial creation in 20
 
 Swagger UI Version | Release Date | OpenAPI Spec compatibility | Notes | Status
 ------------------ | ------------ | -------------------------- | ----- | ------
-3.0.20              | 2017-07-21   | 2.0                        | [tag v3.0.20](https://github.com/swagger-api/swagger-ui/tree/v3.0.20) |
+3.0.21              | 2017-07-24   | 2.0                        | [tag v3.0.21](https://github.com/swagger-api/swagger-ui/tree/v3.0.21) |
 2.2.10             | 2017-01-04   | 1.1, 1.2, 2.0              | [tag v2.2.10](https://github.com/swagger-api/swagger-ui/tree/v2.2.10) |
 2.1.5              | 2016-07-20   | 1.1, 1.2, 2.0              | [tag v2.1.5](https://github.com/swagger-api/swagger-ui/tree/v2.1.5) |
 2.0.24             | 2014-09-12   | 1.1, 1.2 | [tag v2.0.24](https://github.com/swagger-api/swagger-ui/tree/v2.0.24) |

package.json

@@ -1,6 +1,6 @@
 {
   "name": "swagger-ui",
-  "version": "3.0.20",
+  "version": "3.0.21",
   "main": "dist/swagger-ui.js",
   "repository": "[email protected]:swagger-api/swagger-ui.git",
   "contributors": [