Mobile fixes

Mobile-related changes:

• Fixed searching in Mobile page - I'd accidentally broken it when doing some code cleanup
• Made Enter key in search box work on the Mobile page from within Firefox
  
• Added Mobile link to main page
• Added tooltips to Mobile page
• Slightly changed how you scroll (was a factor of 0.5 of the width/height, now it's 0.4)

Also, fixed a data error causing Hicongengiso to not appear, and fixed the IFRAME API docs Ω