Fix a bug that causes routes to be relative even when in pushState. Normal link interaction handles this because Durandal intercepts it, but if a user opens a link 'in a new tab' Durandal doesn't intercept it, and a relative link is opened, which fails.
Merge branch 'router-fix' of https://github.com/tyrsius/Durandal into Version-2.1.0
Fix Issue #464: Fix a bug that causes routes to be relative even when in pushState