* Allow S3 upload even when using custom outputFolder.
* Add new s3.path option, to override the default storage path in the S3 bucket.
* Change the default storage path in the S3 bucket to no longer include the prefix 'sitespeed-result’.
* Remove broken/not useful progress load for S3 upload (was producing 100000+ log lines.
* Extract result url building into separate module that’s made available to plugins via context.resultUrls.
- rename relativePathFromUrl to pathFromRootToPageDir to make it more obvious what it does.
- join relative url path with / instead of using the path module (should make paths work on all OSes).
- remove path parameter for url run pages, since it wasn't used.
- make StorageManager constructor signature follow node conventions (options last) and add some StorageManager tests.
Peter Hedenskog
Tobias Lidskog