Updating tickets (#87, #439, #461, #470, #503, #520, #521, #552, #560, #572, #573, #578, #592, #599, #611, #619, #621, #630, #637, #639, #641, #642, #644, #653, #655, #657, #665, #670, #455, #487, #601)

Will we not get this through Multiverse 0.7?

Not sure. Are we going to drop our implementations of map and vector too?

Passing this over to you, Peter (Veentjer).

This can be included as a transactional datastructure like the current map and vector, or a Multiverse datastructure, or ...

Will use Scala STM