Port defaults to 0 instead of 27017

[bendrucker]

#60 raised the issue of both using a default address (127.0.0.1) and a default port (27017). 7baca22 added a sensible default address, but not a port.

[mathieug]

+1

[jeromelebel]

Fixed in 2.5.11(105), I let you close that issue after verifying that it works for you.

[bendrucker]

Verified. Thanks!