Improve navigation via arrow keys

 * Prevent them from also scrolling the window, which was
   problematic when in a narrow window
 * Add ctrl+arrow to navigate between special frames and
   ctrl+shift+arrow to jump to beginning/end
Lower-casing "Frames", the uppercase broke things

On my machine, at least
Remove debug code from ayop-preload.js

Whoops, sorry :)
Merge pull request #105 from cincodenada/master

Improve navigation with arrow keys, prevent scrolling window while navigating
Merge pull request #106 from lucaswerkmeister/master

Remove debug code from ayop-preload.js
Removing debug, whoops!
Improving color diff algorithm for grayscale
Incorporating the original pixel color in

I like this effect a lot, although I'm not sure how well it
works for dark colors changing.
Merge pull request #107 from cincodenada/grayscale_changes

Improve diff algorithm for grayscale changes
Fixed css problem with slider.
Fix broken feature #43
Fix #108.
Merge pull request #111 from lucaswerkmeister/fix-108

Fix #108.
Merge pull request #110 from lucaswerkmeister/fix-43

Fix broken feature #43 (navigate by clicking in preload indicator)
Re 5ca63c7, this fixes the mouse cursor in the preload indicator box.
Fixes #109, this switches to having curl write out the direct file without re-creating it in php
Fixes #101, this adds in a checkbox to toggle pausing for debated frames or not