Add real-time updates and bug fixes

Here's a summary of the major things that come in 1.1.0:

• Add SignalR hub allowing clients to subscribe to a poll vote events.
• Order polls from most recent to newest on /polls endpoint.
• Fix issue where polls with infinite duration weren't displayed when fetched from /polls.
• Add .editorconfig enforcing some naming conventions.
• Other minor fixes.

Initial release

v1.0.0

Update README.md