wq.start 0.8.3

• Tell browsers not to cache the Appcache (da05932, inspired by h5bp)
• Split example into two models and provide better default styles (1289085382a9cac95b496524858ce1adfa23626b)
• Updated settings and urls to use testing server (#17 / #19 via @joshglenn)
• Use prefix (#15)
• Auto-generate requirements.txt (#16)