Support Continua CI in Cake

See https://github.com/cake-build/cake/tree/develop/src/Cake.Common/Build/

I think Continua CI should be in there. Happy to help out, but I think it’s extremely easy for you to check it out (you know the integration better than I do).  Let me know if I can help out some way.

Hi Geert,

Thanks for the suggestion and sorry for the delay in replying. We have taken a fork the cake-build repository and are working on adding some Continua integration.