I like putting `scala.` in front of my language imports.

(Also, I realized at Nescala that many other devs/companies just add theses as compiler flags, using something akin to
```scala
scalacOptions ++= Seq( "-language:implicitConversions", "-language:postfixOps", "-language:higherKinds", "-language:existentials" )
```
in their `Project.scala`. I'm fine with most, if not all (We've never actually had any problems with `postfixOps`))