Always clear the image load timeout job.
Pass the correct object to image load callbacks.

Previously, the image object was passed on to onTileLoad regardless
if it loaded successfully or not. In case an image failed to load,
this would result in trying to draw a non-existing image onto the
canvas, which (at least in Firefox) throws a DOM exception and results
in the drawer being stuck mid-update.
Make sure navigator has non-negative width/height

Older versions of IE throw if we try to assign a negative width/height.

Fixes #24.
Add TODO comment about magic number
Update documentation for Drawer#loadImage.

Additionally, improve name of the parameter passed to the complete
listener.
Merge pull request #26 from Ventero/patch-1

Make sure navigator has non-negative width/height
Comment tweak
Built latest
Merge pull request #15 from Ventero/imageload

Pass the correct object to image load callbacks.
Comment typo
JS Hint work (mostly semicolons at this point)
Built recent commit
Using square bracket notation for keyword
Build
improving custom tile source examples are work for layers begins being supported
Merge branch 'master' of github.com:thatcher/openseadragon
fixing example image paths with prefixUrl
fixing some work in progress for collections visualizations
Merge branch 'master' into lint

Fixed Conflicts:
	openseadragon.js
	src/drawer.js
finished collection support for html drawers