Build PDF from local webserver to maintain styling

Refactor some of Spider into ServerDirector class
[finishes #67272196]

Signed-off-by: Nikhil Gajwani <ngajwani@pivotallabs.com>
Bump version to 0.1.15

Signed-off-by: Nikhil Gajwani <ngajwani@pivotallabs.com>