Rename block parameter of -scanWithStart:reduce:
Add -scanWithStart:reduceWithIndex:
Steal documentation for -aggregate: from 3.0-development
Add -aggregateWithStart:reduceWithIndex:
Fix code format
Simplify subscription on -subscribeOn:
Merge pull request #1278 from ikesyo/indexed-scan-aggregate

Indexed variants of scanning and aggregating
Merge pull request #1328 from ReactiveCocoa/subscribeon-simple-subscription

Simplify subscription on -subscribeOn:
Fix typo
Merge pull request #1340 from wiruzx/patch-1

Fix typo