Broadcast mentions and retweets#8

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eadmundo wants to merge 5 commits intoianozsvald:masterfrom

adaptivelab:broadcast_mentions_and_retweets

Commits on Oct 8, 2013

tests and docstring for broadcast mentions and retweets
Edward Stone
committed
check for broadcast mentions in tweet text
Edward Stone
committed
couple more old-style retweet tests
Edward Stone
committed
check for old-style retweet in tweet text
Edward Stone
committed
add docs for broadcast mentions and retweets to README
Edward Stone
committed