Add support for cucumberjs v1.1.0 registerHandler api

[tabanliviu]

cucumber/cucumber-js@7d7ba96
has changed the way registerHandler is implemented by deprecating getPayloadItem

see https://github.com/cucumber/cucumber-js/blob/7d7ba96262031b4fb7ab83216f474817d3892f3f/lib/cucumber/runtime/event.js#L14

EDIT: Actually the break is from the use of of callback and returning a promise.
But since that was the error displayed I assumed it was the cause
(Currently it breaks when used with cucumberjs 1.1.0 and protractor 2.3.0)

[mattfritz]

Is it broken or just showing the deprication message? @Eis95 opened #40 for this a few days ago, but I have not integrated it yet

[ed-snodgrass]

AFAIK it was just showing the deprecation message. OP may have seen different results.

[tabanliviu]

@mattfritz Updated the ticket. It was a combination of warning + unrelated error (callbacks + promises at the same time from 1.1.0) that didn't have an error output that made it seem like this was a breaking change

[ed-snodgrass]

Any reason the pull request hasn't been brought in?

[aluzardo]

Maybe this issue #55 also could be fixed with @Eis95 pull request.

[darrinholst]

this has been incorporated in v1.0.0