Cleanup of error states

Cleaned up the way consul connection issues and no services found. Now there is a "no consul" and "no service found" exception. The request for a service instance will still return no instances if called directly however the http handler will now throw an exception.

Client bugfix for getting service instances

Fix for service watcher when consul is not responding so we do not hang.

Patch for a client bug and server progress

Merge pull request #51 from Drawaes/ServerRefactor

Server refactor

Release 2.0 A far better client

2.0.1

Final commit

Final 2.0

Build fix

Released with .net 451 support

0.6.1

New release