Add pseudo-elements to universal selector in print media query

The pseudo-elements `:before` and `:after` are not targeted by the
universal `*` selector. When the page is printed the CSS properties of
any pseudo-elements will only be overridden if they are being inherited
from their selector. Any styles that have been defined directly on a
pseudo-element are unaffected.

Closes #1585.
Fix typo in `gulpfile.js`

Close h5bp/html5-boilerplate#1586.
Docs: Update icon size for Chrome Mobile web apps

The recommended size for the icon that Chrome Mobile uses to
install to the homescreen was recently changed to 192×192px.

Ref: https://developer.chrome.com/multidevice/android/installtohomescreen#icon
     h5bp/html5-boilerplate#1587

Close: h5bp/html5-boilerplate#1587
Added Bootstrap to devDependencies
Added Font-Awesome to devDependencies
Updated Some Errors
Added Bootstrap and Font-Awesome
Removed Normalize
Added Variables for Vendor Package Versions
Added Replace Logic for Vendor Files
Created New Build of Custom HTML5 BP
Updated Readme