Removed slideshow CSS and JS.

It's not used and contributes to page weight, increasing load time.

Part of the project to solve #71.
Delete modernizr, as it served no purpose apart from to slow page load.

Part of the project to solve #71.
Add description of crypto-currency.
Merge pull request #94 from glv2/crypto-desc

Add description of crypto-currency.
Merge pull request #92 from bearbin/speedfixes-5

Delete modernizr, as it served no purpose apart from to slow page load.
Merge pull request #91 from bearbin/speedfixes-4

Removed slideshow CSS and JS.