Download progress report

[quintesse]

I'm not really sure where to file this although I imagine we first need some low-level support for this in the CMR so that's why I file this here: we need progress reporting on the downloads so people don't have to stare at an empty screen.

[alesj]

OK, I'll try to add this to ArtifactResult.

The question is how to do this for:

• http lookups
• web-dav
• maven

And another question is how and where to push progress hook into CMR internals.

But np, I'll have this done for M5.

[FroMage]

Moving to M6

[FroMage]

This is going to be related to the work on the IDE eclipse-archived/ceylon-ide-eclipse#573

[FroMage]

Pretty sure this was implemented by @davidfestal, and if we need support on the logs or CLI then it's another issue, no?

[davidfestal]

Yes, I implemented it inside the IDE (eclipse-archived/ceylon-ide-eclipse@ee1f23b) with the ArtifactCallback mechanism provided by @alesj at this time (afair)

[quintesse]

Let's move this to 1.2 because it depends on #106