Init socket.io communication and log container

@param {Object} opts options
function init(opts) {
      var self = this;

      // Elements
      _logContainer = opts.container;
      _filterInput = opts.filterInput;
      _filterInput.focus();
      _topbar = opts.topbar;
      _body = opts.body;

      _setFilterValueFromURL(_filterInput, window.location.toString());

      // Filter input bind
      _filterInput.addEventListener('keyup', function(e) {
        // ESC
        if (e.keyCode === 27) {
          this.value = '';
          _filterValue = '';
        } else {
          _filterValue = this.value;
        }
        _setFilterParam(_filterValue, window.location.toString());
        _filterLogs();
      });

      // Favicon counter bind
      window.addEventListener(
        'blur',
        function() {
          _isWindowFocused = false;
        },
        true
      );
      window.addEventListener(
        'focus',
        function() {
          _isWindowFocused = true;
          _faviconReset();
        },
        true
      );

      // socket.io init
      _socket = opts.socket;
      _socket
        .on('options:lines', function(limit) {
          _linesLimit = limit;
        })
        .on('options:hide-topbar', function() {
          _topbar.className += ' hide';
          _body.className = 'no-topbar';
        })
        .on('options:no-indent', function() {
          _logContainer.className += ' no-indent';
        })
        .on('options:highlightConfig', function(highlightConfig) {
          _highlightConfig = highlightConfig;
        })
        .on('line', function(line) {
          self.log(line);
        });
    }