Travis-CI support for D

[ZombineDev via Digitalmars-d-announce]

I agree with most of your points. I don't think that anyone 
should consider master (git head) as even remotely stable. It's 
about testing experimental features in early stages of 
development. That said, I still think that more testing can't do 
any harm. Additionally, having pre-alpha releases (including 
installers and so on) available on a regular basis, should 
improve the release process.