Fix exports error in package.json

Merge pull request #5 from einenlum/fix/default-error

Fix exports setup in package json

Allow users to record typing on their apps

This release is a huge change.

• Complete rewrite to use TypeScript
• Now it's a lib accessible on npm and CDN
• The demo still allows to copy paste a few lines of JS, but also to copy compressed data to give to the lib to replay it
• Users can now use the lib itself to record typing in their own app

Reduce data bandwith

Now the full content is not stored on each input. We store a diff if the keystroke is an append or a delete.

Misc bugfixes

1.0.1

Hide preview button when in a preview

1.0.0

Fix typo