Bacpypes

This is a hot fix release in the `iocb` module that changes the `Remove()` function call, which used the old naming convention, to `remove()`, which is what it should have been.

This is a minor update to the `bacpypes.tcp` module to handle connection timeouts like idle timeouts. The problem with the last release is that by setting the socket timeout using `settimeout()` it made the socket blocking, which is bad. This update keeps the sockets non-blocking.

This release closes some outstanding issues that have lingered since the last release. There is an API change to the `bacpypes.tcp` module that will impact very few people because hardly anybody uses that module unless they use [MODpypes](https://github.com/JoelBender/modpypes), and an additional parameter to recurring tasks to make easier to lots of tasks with the same interval but offset them slightly so they don't step on each other.

So the last release was a bit of a misstep, I built and uploaded it on one of my development machines that didn't have the *wheel* pieces correctly installed for the Python3 code. I also found an issue branch that was merged into `stage` on one machine but not the others, so it was missed, but is now included (112).

Thank you to everyone that contributed patches and suggestions, I hope you find success with this fine kettle of fish!

There are lots of contributions from other developers in this release, both bugs and a new feature for using interface names in addresses using the [netifaces](https://pypi.python.org/pypi/netifaces) module if it is installed.

_(I wonder what happened to the 0.15 release tag)_

This release is hot the heals of the last one with lots of bugs squashed.