Cleaned up blueprint.js
* removed unnecessary assignment
* removed unnecessary writefile function that just swapped arguments
* made double iteration in processFiles method a simple reduce
* update changelog to reflect changes
Merge pull request #537 from crismali/cleanup-blueprint-js

Cleaned up blueprint.js
Ensure that Bower packages are installed after `npm install`.
Merge pull request #554 from rjackson/run-bower-in-blueprint

Ensure that Bower packages are installed after `npm install`.
WIP