V1

Lpxc started off as a reference implementation for Heroku Add-on providers to use as an example. However, there have been several companies (including Heroku) who have started to use this code in production. Thus, I have been motivated to add the following features to the library in hopes of making it a suitable choice for production systems.

* Tests - There are a couple unit tests and an integration test.
* Multi-tenancy - It is now possible to use 1 instance of **lpxc** to transport logs for many logplex tokens.

I am also planning on merging in the changes from #3 into the V1 release.

cc: @deafbybeheading @technomancy