OSGi `-split-package:=first` seems unsafe

[lrytz]

I took the current master branch of this repo and ran in sbt 1. show core/package and 2. core/publishLocal on my machine. When comparing the content of the jars, the publish one includes includes the wrong classfiles in the scala/collection/ package, it's the classes of the standard library instead of those in the module.

Diff is here: https://gist.github.com/lrytz/96e397595a4be5fbfe7a9b80baf48f28/revisions

It seems the assumption mentioned here is not correct:

scala-parallel-collections/build.sbt

Lines 31 to 32 in ca1a294

	// The first entry on the classpath is the project's target classes dir but sbt-osgi also passes all
	// dependencies to bnd. Any "merge" strategy for split packages would include the classes from scala-library.

I think this is pretty risky, and we should probably disable OSGi support if noone knows a better solution. cc @SethTisue.

[SethTisue]

agree, let's do that. also wdyt about #80 which proposes going to version 1.0?

[lrytz]

Bumping to 1.0.0 sounds good 👍