Add shift operations to BitSet

[linasm]

A BitSetDecorator that adds << and >> operations (bitwise shift) to BitSet collections.
Solves #41

[julienrf]

Thanks! Can you squash your commits?

[linasm]

Sure, squashed them.

[julienrf]

Thanks!

[linasm]

@julienrf, I realized that the documentation links which I added to README for BitSet shifts are incorrect (and probably could not be implemented until the next release), sorry for that.
Should I just remove them for now, or maybe a new release is in the near term plans, or could there be some other solution that you would advice?

[julienrf]

Ah, indeed we will have to update these links at the next release. We should probably do another release soon anyway because we have added a bunch of cool things (BitSet shift operations, splitBy, lazyFoldLeft, Scala.js support).

@SethTisue How do we decide when we should release a 1.0.0 version?

[SethTisue]

@SethTisue How do we decide when we should release a 1.0.0 version?

um, I don't really have an opinion about that. @szeiger opinion?

[julienrf]

ping @szeiger

[szeiger]

Let's look into this after 2.13.1.

[julienrf]

I’ve just published a 0.2.0 version, can someone with the appropriate rights release it from the staging repository on Sonatype?
https://travis-ci.org/scala/scala-collection-contrib/builds/579669459

[szeiger]

I see two open staging repos with 0.2.0. Both appear to have the same JVM artifacts. One additionally has sjsj 1.0.0-M8 artifacts, the other one has sjs 0.6 artifacts.

[julienrf]

Both appear to have the same JVM artifacts

Ah, I believe one has been build on jdk11 and the other one on jdk8. We need to tweak the script.

[szeiger]

Is one of them good for a release or should I delete both?

[julienrf]

Unfortunately none of them is complete, you should delete both. Thanks!

[szeiger]

I just noticed that there are even two repositories with the JVM + ScalaJS 0.6 artifacts. I suppose this is from JDK 8 and 11 and the one with ScalaJS 1.0.0-M8 is yet another build.

[szeiger]

Everything dropped.