Adds a cool background image for our site.
Merge branch 'master' of https://github.com/GalaxyQuest/GalaxyQuestWebsite

Conflicts:
	public/styles/index.css
Merge branch 'master' of https://github.com/GalaxyQuest/GalaxyQuestWebsite
completed much of the 1st iteration text
revising 1st iteration text
Iteration text complete
Merge branch 'master' of https://github.com/GalaxyQuest/GalaxyQuestWebsite
Merge pull request #45 from Caesarofthesky/master

Completed first iteration text
Merge branch 'master' of https://github.com/GalaxyQuest/GalaxyQuestWebsite
Implements second iteration of the improving your algorithm page.
revised text to reflect theme
Edits chapter 4 to adhere to our theme
Merge pull request #46 from vingiarrusso/feature

revised text to reflect theme
Merge branch 'master' of https://github.com/GalaxyQuest/GalaxyQuestWebsite
Merge pull request #47 from chughes87/master

Edits chapter 4 to adhere to format and theme
Merge pull request #48 from HarleyKwyn/master

added favicon
Implements major style overhaul
Merge pull request #49 from HarleyKwyn/master

updated Kwyn's linked in URL
merges upstream for style overhaul
Merge branch 'master' of https://github.com/GalaxyQuest/GalaxyQuestWebsite
adds cost function image