spray/spray — pull request #801 by jrudolph (2014-03-04 14:20:04+00:00)
Title: ! servlet: introduce `root-path = auto` and make it the default, fixes #701

Breaking change because it changes the default. This change is compatible as long as root-path was set explicitly before. It will break user code if the user code relies on root-path being set to "" which wasn't recommended in the first place.