polling: close the pending poll request when closing transport
socket: flush the write buffer before closing the socket (fixes #293)
Release 1.4.2
Merge pull request #294 from lpinca/fix/gh-293

socket: flush the write buffer before closing the socket (fixes #293)
Merge pull request #291 from lpinca/close/pending-request

polling: close the pending poll request when closing transport
package: bump `ws` to fix fd leaks
Release 1.4.3
Add cert tests.
Bump engine.io-client.
Additional SSL tests.
Bump engine.io-client.