Adds HTTP basic authentication

To enable basic HTTP authentication, add the following keys to ~/.log.io/server.json:

"basicAuth": {
  "realm": "abc123xyz",
  "users": {
    "msmathers": "secretpassword1"
  }
}

realm should be a custom value that you generate.

Add better handling for removing watched files

A common log rotation scenario involves moving a watched file to a different path and then creating a new file of the same name. This fix addresses that scenario.

Use chokidar for more robust file watching

• Adds chokidar library for file watching
• Input configuration supports glob patterns for file matching
• New files are automatically detected, addresses log rotation issues.

Persist screen binding state

All screen bindings are stored in the URL hash, which gets updated as a user binds & unbinds inputs. Allows users to share their specific binding session by sending their URL to other users.

Filter screen messages

• Adds screen control input to filter messages. Matched text gets highlighted.
• Avoid array slicing on every render cycle. Move message array slicing to reducer to improve performance.

CircleCI publishing integration

• Automatically publish new versions of log.io and log.io-file-input to NPM when a new version tag is pushed.

Fix errant TCP message handling behavior #2

• Ignore TCP messages that don't include a termination character, as reported by #220, second attempt

Fix errant TCP message handling behavior

• Ignore TCP messages that don't include a termination character, as reported by #220

Handle file deletions

• Adds error handling around watched files being deleted off the filesystem. Will gracefully recover if the file reappears.
• Changes screen message text color.

Scrollbar style fix

• Fixes scrollbar rendering issues caused by overflow-y: scroll;
• Updates README shields