Revert "handle more process.nextTick situations"

This reverts commit cbcc1da70d048ddee69b936df033650e32f34760.
handle async adding tasks using flush timeout

we try to add depth 0 tasks in bulk so that we handle cases where people
are adding them asynchronously (which is bad)
upgrade mocha
1.1.0
1.1.1
wdjs 121 issue test
1.1.2
minor refactoring
aborts chain if callback returns a certain value - false for now
Merge branch 'master' of https://github.com/ysono/chainit

Conflicts:
	index.js