Include sbt-ivy-snapshots to launchconfig
Prior to this change, the launchconfig for sbt was generated using
Transform's resource generator so releases would include
`typesafe-ivy-releases` repo, and snapshot releases would include
`typesafe-ivy-snapshots` and `sonatype-snapshots` repos in addition.
This is no longer useful since nightly builds are now published to
`sbt-ivy-snapshots` instead, which is backed by Bintray.
This removes the switching logic, so both `typesafe-ivy-releases` and
`sbt-ivy-snapshots` repos are always included into the launchconfig.
This removes the step of needing to download a launcher just to try the
nightly builds.
* Remove launch/* code/tests, as these are in the sbt/launcher project.
* Create a new project which will resolve launcher module from sonatype-snapshots,
and repackage it for the currently building version of sbt.
* Remove ComponentManagerTest which was relying DIRECTLY on launcher classes.
We'll need to reconfigure this shortly to enable the tests again.
Remaining TODOs -
* Update resolvers so people can find the launcher.
* Add ComponentManagerTest back.
* Re-publish the sbt-launch.jar in the location it used to be published.
Eugene Yokota
Pierre DAL-PRA
Josh Suereth