lib/Events.test.ts    |  19 ++
 lib/Events.ts         |   9 +-
 lib/progress.test.ts  | 127 +++++++++
 lib/progress.ts       | 492 ++++++++++++++++++++++++++++++--
 lib/readme.changes.md |   5 +
 lib/readme.md         |   2 +-
 6 files changed, 620 insertions(+), 34 deletions(-)