When adding request, the HTTP type MUST be lowercase, defying HTTP convention

[mboudreau]

This will work:

provider.given('initial state')
    .uponReceiving('a request for all the data')
    .withRequest('get', '/')
    .willRespondWith({
        status: 200,
        headers: { 'Content-Type': 'application/json' },
        body: 'weee'
    });

This will not:

provider.given('initial state')
    .uponReceiving('a request for all the data')
    .withRequest('GET', '/')
    .willRespondWith({
        status: 200,
        headers: { 'Content-Type': 'application/json' },
        body: 'weee'
    });

Spent a good hour trying to figure that tidbit out... Please fix.

[bethesque]

Duplicate issue: pact-foundation/pact-support#3
It should be fixed in the matching logic, but we can apply a quick fix by lowercasing it in the javascript.