Adding more test svgs
Fixed problem with zipped PNGs

JSZip needs the image data without the `data:image/png;base,` part.
Minor changes to index.html
Split file previews into separate views
Cleaned up some styles
Fixes to preview.html and icons.fallback.css

preview.html was escaped, now should be html. icons.fallback.css was
showing the wrong css.
Unescaped the JS in preview.html
Issue #4 - fixing svg datauris to be ascii

Change svg datauris from base64 to ascii.
Ready for Heroku deployment
Adding procfile for heroku

Making sure the port is correct

Make sure npm is listed as an engine dep

Properly labeling deps

Properly labeling deps
Merge branch 'master' of https://github.com/filamentgroup/grunticon-app