Add an X-Github-Event header to DeployHQ service.
Add an X-Github-Event header to DeployHQ service.

To make DeployHQ more compatible with Github webooks (now the reccomended way
of integrating), Deploy now expects an X-Github-Event push header to be present.

galeksandrp/github-services,galeksandrp/github-services,github/github-services,Zarthus/github-services,VladRassokhin/github-services,github/github-services,VladRassokhin/github-services,Zarthus/github-services