Scala 2.12 support

[Unisay]

http://www.scala-lang.org/news/2.12.0

[stanch]

Let’s see... here is the current status:

• [ ] uk.co.turingatemyhamster:gv-core_2.12:0.3.2 (https://github.com/drdozer/graphviz-s/issues/15)
• [x] org.stanch:zipper_2.12:0.3.1 — I will publish this one soon
• [x] de.sciss:fingertree_2.12:1.5.2 (https://github.com/Sciss/FingerTree/issues/6)
• [x] com.chuusai:shapeless_2.12:2.2.5 — I think I need to upgrade to the 2.3.X series. Last time I tried it something was not working, but I don’t remember what exactly. Contributions are welcome :)
• [x] com.sksamuel.scrimage:scrimage-core_2.12:2.1.7 (https://github.com/sksamuel/scrimage/issues/121)

[rklaehn]

I know that just saying :+1: is not very helpful, but...

:+1:

[stanch]

I am happy to cross-build as soon as drdozer/graphviz-s#15 is fixed :) Another option is to fork that repo and publish myself. I will leave a comment there.