Track auto tasks using a counter to allow records to be inserted/removed from results
Add queue.pause() and queue.resume()
implement async.retry using async.series
allow retry to run as an embedded method inside other controll flows
add test case for embedding async.retry in another control flow
fix some poor spelling
Link to the cargo vs. queue animation
Merge pull request #473 from jessehouchins/auto-task-tracking

Track auto tasks using a counter results can be inserted/removed dynamically
Release 0.4.1
Merge pull request #474 from maxkueng/pause-and-resume

queue.pause() and queue.resume()
release 0.5.0
Merge pull request #475 from jessehouchins/async.retry

Async.retry
release 0.6.0
Merge pull request #477 from dandv/patch-2

Link to the cargo vs. queue animation
replace `callback(null)` * 3 to `callback()` for consistency
detect functions coming from other JavaScript contexts
Merge pull request #479 from Mithgol/detect-extracontextual-functions

also detect functions coming from other JavaScript contexts
release 0.6.1
Merge remote-tracking branch 'origin/master'

Conflicts:
	lib/async.js
fix #472, add internal _toString