Survey results

[Brian Goetz]

Survey results for the last two surveys are here:
 
https://www.surveymonkey.com/sr.aspx?sm=Rmxo_2fOmocQqW5Txn1rPztBT4bwQsjNcCWzomugR5Fsg_3d

 
https://www.surveymonkey.com/sr.aspx?sm=KxnVsqG2kS7L_2bayV3Kg_2bu2Qi40QNOfB8penEX2R4Cuc_3d

Mike has already responded to the comments for XxxSummaryStatistics.

I have integrated the comments for Stream into a recent push, and 
propagated them forward to {Int,Long,Double}Stream.

I have removed forEachUntilCancelled based on evidence that people find 
it too confusing.  We're working on a new proposal for cancelation, stay 
tuned.