Updated changelog and modified the README

Added the newly added badges to the CHANGELOG and added them as well to
the README. Might add another badge for Travis on branch development.
Major restructuring of the generation of the app

Removed all the logic behind both choosing what directories CSS, JS etc
ends up and removed the grunt-deploy configuration and options. Will be
added later. All assets now default to assets/css etc and can't be
changed during installation. This fixes #7, fixes #8 and fixes #10.

The updates to index.js includes commenting out the deploy options,
and making Redcarpet the default Markdown engine, removed compass and
removed the h5bp template. This fixes #1, fixes #13, fixes #14,
fixes #15, fixes #16, fixes #17 and fixes #18.
Renamed jekyll:app into jekyllized:app
Updated CHANGELOG and restrucured package.json