Update console method to remove function-name from noop

Reference:
h5bp/html5-boilerplate@94ec8161d0215203ed3fcd3e0892813abd4f37c3
Include HiDPI version of favicon.

Reference:
h5bp/html5-boilerplate@21702c4198124647d541be635268b16ef7d33c72
Zoom on focus function: move functions outside of loop

Remove creation of onfocus- and onblur-functions from
for-loop since this is bad for performance. Instead just
call a reference of these functions.
Reference length of form fields in preventZoom function

This improves performance a little bit.
Add main.js to index.html

Closes #158.
Merge pull request #157 from drublic/preventZoom-improvement

Improvements to preventZoom function
Merge pull request #160 from drublic/main-js

Add main.js to index.html