dub lint

[Ali Çehreli]

I've always thought of dub as a package manager and a build tool. But it 
actually makes it easy to use other tools:

- dub lint: Runs some checks on your project. What I liked is how it 
removed the need to figure out how to install dscanner, which it uses 
behind the scenes. It installed dscanner and simply ran it. Cool... 
(However, like all linters it's not perfect but I still like having that 
power.)

- dub dustmite: I haven't actually tried this but dub's help with using 
dusmite sounds great.

Ali