update dependencies (#82)

* update deps

* use shields.io downloads banner instead of the current broken one

Author: kobik

.gitignore

@@ -36,9 +36,6 @@ build/Release
 node_modules/
 jspm_packages/
 
-# package-lock
-package-lock.json
-
 # Typescript v1 declaration files
 typings/
 

README.md

@@ -192,7 +192,7 @@ npm test
 [coveralls-image]: https://coveralls.io/repos/github/Zooz/express-ajv-swagger-validation/badge.svg?branch=master
 [coveralls-url]: https://coveralls.io/github/Zooz/express-ajv-swagger-validation?branch=master
 [downloads-image]: http://img.shields.io/npm/dm/express-ajv-swagger-validation.svg?style=flat
-[downloads-url]: https://npmjs.org/package/express-ajv-swagger-validation
+[downloads-url]: https://img.shields.io/npm/dm/express-ajv-swagger-validation.svg
 [license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
 [license-url]: LICENSE
 [snyk-image]: https://snyk.io/test/npm/express-ajv-swagger-validation/badge.svg