Move to the contracts package

1.2.0

update to contracts package

Fix null ref

Fix a null ref when you use the statsd constructor without a BaseCommunicationProvider. Added unit tests to cover the future.

Remove unused package references

We don't actually need/use system.dynamic and a few other packages that were targeted.

Add dotnet 4.0

1.1.0

Compile against dotnet 4.0

First Release :tada:

1.0.0

cut a first release :tada: