fix #141
Update javascript/pagecontrol.js

Fixed issue where pages/frames added with JS aren't hidden after init when switching pages.
Now, we get a fresh set of frames to be hidden before switching pages.
Merge pull request #149 from ZachGambino-GG/develop

Update javascript/pagecontrol.js
add namespace .metrouicss for styles
add namespace .metrouicss for styles
fix windows8start demo