the sbt point is really outdated; sbt 0.13 only ever requires you to use "foo := bar" (assign bar to foo), though one might choose to use convenience operators

the sbt point is really outdated; sbt 0.13 only ever requires you to use "foo := bar" (assign bar to foo), though one might choose to use convenience operators such as "foo += bar" (append bar to foo). sbt's syntax has been cleaned up nicely and now it has very clean syntax.