change nav styling to match arcade design, add transitioning effect, fix container width
remove new game link from home page, add image and link to new game
Merge pull request #77 from stcrestrada/stephen

Stephen
remove self from high_score method in helpers
Pull upstream master
Merge branch 'master' of https://github.com/woolly-bear-caterpillars-2014/Tetroggleable into stephen
merge master
Merge pull request #78 from jpberry0623/master

small style changes and home image
Pull upstream master
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Merge branch 'master' of https://github.com/woolly-bear-caterpillars-2014/Tetroggleable into stephen