jboner/akka — pull request #258 by rkuhn (2012-01-24 20:26:16+00:00)
Title: tighten static type of Duration factories

- return FiniteDuration whenever possible to allow statically guarding
against infinities
- add Ordering[Duration] and Ordering[FiniteDuration] instances
- avoid use of structural types in multiplication enrichments
- had to fix type inference problem due to too precise type in
DurationSpec (view bounds vs. local type inference vs. operator
precedence)

Include in M3 if you wish.