spray/spray — pull request #480 by agemooij (2013-08-31 21:03:18+00:00)
Title: + caching: add a size method to Cache[V]

Fix for #476

I thought about starting a discussion about whether the meaning of "size" might be slightly unclear in the context of the ExpiringLruCache, since it will count expired keys too, but the change was so simple that I thought I might as well just implement it and see what you guys say :)