Increase .travis.yml consistency between repos - aspnet/Universe#349 - minimize `dotnet` setup time; no need for caching - build with `--quiet`
Increase .travis.yml consistency between repos
- aspnet/Universe#349
- minimize `dotnet` setup time; no need for caching
- build with `--quiet`

aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore