Wallaby timeouts... All promise returning calls require catch(done)

[jsobell]

The reason errors in Wallaby fail with 2000ms timeouts is because there are no catches on the promises in the tests.
Add .catch(done) to the end of each then() in the tests causes any error to correctly logged.
e.g.

        validationGroup.isValid()
            .then(function(isValid){
                expect(isValid).to.be.true;
                validationGroup.release();
                done();
            }).catch(done);

[grofit]

I believe this is all fixed with the latest PR so will flag it as complete feel free to re-open.