Add some optional debug prints
Fix the error handling for the latest version of browsers

The error name is now a days `QuotaExceededError` in both Firefox and
Chrome.
Merge pull request #17 from ansman/new-error-type

Fix the error handling for the latest version of browsers
Merge pull request #16 from ansman/master

Add some optional debug prints
Update README.markdown

Silliest PR ever.
Merge pull request #18 from tebriel/readme-fix

Update README.markdown
merged in upstream changes
Add warning when localStorage is unsupported