Initial commit
Added initial files

I'm reusing my FITS reading files from jsFITS to get things started.
Updating README
Fixed "source" position and changed colour.

The "source" position wasn't correctly placed compared to the cursor.
Also made it redder to make it more obvious.
Added credits
Added label to source
Changed status message
Adding excanvas for old IE
Rewritten so that it doesn't use jsFITS

I've removed all the FITS file loading part.
Example single elliptical galaxy color pngs
Removed old files
Basic check for failure to getImageData

The failure is likely due to the web browser cross domain policy
tainting the canvas as it has a local file image in it.
A cheat to get around cross domain issue for local version

It now puts an HTML img tag behind the lens which is drawn as a
transparent overlay. Also combined functions into the main library.
Merge branch 'master' of https://github.com/slowe/LensToy
more realistic image: 20arcsec cutout, with 2arcsec einstein radius. Also black html looks cooler.
Refactoring and changing blur function
Fixes for image scaling
Including image scale-up for theta_e
Added offsets for lens centre

Offsets are in original image pixels.
Bug fix for putImageData