A self-contained file server for transferring files between devices

Now

[x] Use responsive design. [x] Enable sending multiple files

[ ] Add integration tests

[ ] Convert bytes to mega bytes for representing.

[ ] Make appropriate methods private

Later

[ ] Enable downloading an entire directory as a compressed zip file. Reference: https://stackoverflow.com/a/28060092/418473

[ ] Add chunking in JavaScript code for upload resuming feature

[ ] Use Static Typing

[ ] Add favicon.ico