Added a commit() method to Railpage\Downloads\Category

Signed-off-by: Michael Greenhill <doctorjbeam@gmail.com>
Bugfix for loading of galleries where the album name is all numbers

Signed-off-by: Michael Greenhill <doctorjbeam@gmail.com>
Minor change to namespaced Exception in Users\Base

Signed-off-by: Michael Greenhill <doctorjbeam@gmail.com>