$location regression #2774

@mhevery your recent commit 58ef323 added a regression: If you land on a deep URL the base gets incorrectly set so routes break. Example URL:

http://localhost:8080/page/2 --> base is http://localhost:8080/page but should be http://localhost:8080/.

This sets $location.$$path to /2 when it should be /page/2.

stripFile() is the culprit I believe.