Add support for intercepting route execution and adding metadata object to routes

Add previous route information to route execution interceptor

Switch previous and current route places in route interceptor

Update README, change version to 1.1.2

Update README to contain info about v1.1.2 changes

Update bower component version to 1.1.2

Remove *.iml from gitignore as there is a iml file in the upstream repo, update version notes to README

Run route interceptors after route has been evaluated