Merge pull request #3 from phillip-haydon/Nugets

Tidy up and new Nugets for v1.5
Application startup should not throw in no api key

Rather than throwing an exception on startup if no api key is present,
Raygun logging should not register itself in the Nancy pipeline.
Merge pull request #4 from ollnixon/no-api-key

Application startup should not throw in no api key
updated nugets