Hi all!
In the manuals there is a note belove [concepts](http://forum.nim-lang.org///nim-lang.org/docs/manual.html#generics-concepts) : "Concepts are still in development." but there is no information about it in the [Roadmap](https://github.com/nim-lang/Nim/wiki/Roadmap). When I've started to experiment with them I've met with dead-ends like the OP in [this thread](http://forum.nim-lang.org///forum.nim-lang.org/t/2363) . Would some of the developers enlighten me about the development status of concepts - is it labeled an important feature and are the fixes will make it into 1.0? Or its expressive power will stay the same as now?
