Moved askReload calls to the Eclipse reconciler mechanism.

You can now register files for reloading in ScalaPresentationCompiler.scheduleReload
They are flushed at reconciliation, and reconciliation updates the error annotations

Fixing indentation.
proper structure for ErrorAnnotation update
De-activated test pending reimplementation of Eclipse model tests
Work on PR comments:better interfacing, plugging on IJavaReconcilingListeners