Merge pull request #12 from Ravenstine/send_refactor

Refactor send javascript.
Merge pull request #13 from Ravenstine/readme

Update readme
Add keystream model to server that constantly deletes its keystream upon use.
Merge pull request #14 from Ravenstine/server_keystream

Add keystream model to server that constantly deletes its keystream upon...
Make it so users and receivers can enter their own private keys manually.
Update readme.