Add startup-images for the iPhone.
Made animframe_polyfill.js JSHint compliant

Reformatted a bunch to make JSHint happy.
Merge pull request #115 from iirelu/jshint-compliance

Made animframe_polyfill.js JSHint compliant
Merge pull request #112 from Josso/startup-image

Add startup-images for the iPhone
code cleanup
Merge pull request #158 from janschoenherr/patch-1

code cleanup
Update README.md

Spelling fix.
Merge pull request #188 from zzatkin/patch-1

Update README.md
Update README.md
Add undo button, to be implemented.

modify the description.
Add undo supported
Merge branch 'undo-branch'
Merge branch 'master' into gh-pages

Conflicts:
	js/grid.js