changed mask notation, added doc.
Merge branch 'master' of https://github.com/nytlabs/streamtools
typo
added the ability to name the channel that fromNSQ uses to read from an NSQ.

w/o this fix it is impossible have more than one fromNSQ on a given topic w/o splitting the data
adding last_state block
Merge pull request #44 from nikhan/master

LARGE BLUE DIAMOND