Update README.md in regards to Bower

Remove Bower badge and lock to v1.1.1 in installation instructions

[ci skip]

README.md

@@ -3,7 +3,6 @@
 Compare alphanumeric strings the same way a human would, using a natural order algorithm
 
 [![NPM Version](https://img.shields.io/npm/v/string-natural-compare.svg)](https://www.npmjs.com/package/string-natural-compare)
-![Bower Version](https://img.shields.io/bower/v/string-natural-compare.svg)
 [![Build Status](https://travis-ci.org/nwoltman/string-natural-compare.svg?branch=master)](https://travis-ci.org/nwoltman/string-natural-compare)
 [![Coverage Status](https://coveralls.io/repos/nwoltman/string-natural-compare/badge.svg?branch=master)](https://coveralls.io/r/nwoltman/string-natural-compare?branch=master)
 [![devDependency Status](https://david-dm.org/nwoltman/string-natural-compare/dev-status.svg)](https://david-dm.org/nwoltman/string-natural-compare#info=devDependencies)
@@ -46,7 +45,7 @@ npm install string-natural-compare --save
 #### Bower (only up to v1.1.1):
 
 ```sh
-bower install string-natural-compare
+bower install string-natural-compare#1.1.1
 ```
 
 Include the script in your HTML (drop the ".min" to use the development version):