Wrapper is unforgiving when trailing the Api Uri with a /

[danhaller]

When using the wrapper the user must create a class that implements IApiUri.

If the Uri ends in a trailing slash i.e. http://api.7digital.com/1.2/ the request url is generated with a double slash which can cause problems with OAuth endpoints because the signature calculations take the request url into account. The resulting error is misleading.

I suggest that the wrapper should be able to handle an ApiUri with or without a trailing slash.

[danhaller]

I can take a look at this when I have a little more time

[AnthonySteele]

Sounds reasonable, you might want something like Path.Combine, which is forgiving w.r.t slashes
http://stackoverflow.com/questions/372865/path-combine-for-urls

[AnthonySteele]

PR submitted: #210