Expanded and Reworded prerequisite instructions

Dev server command put in its own code block

Monospace dev server address

Expanded Build Prerequisites to include all tools

Added some example install commands to prerequisites
Merge pull request #4 from bcomnes/dev

Expanded and Reworded prerequisite instructions
Added .travis.yml for testing grunt and jekyll builds on commit

This required adding a few things to package.json and the Gemfile

Sass was added to the gemfile.
grunt-cli and bower were added to package.json as devDependancies

Vendor folder added to jekyll exclude list
Merge pull request #5 from bcomnes/travis

Added .travis.yml for testing grunt and jekyll builds on commit
Merge pull request #7 from bcomnes/master

Added Travis Badge and links to Silo profiles in the footer