Small adjustments to the Pocket script and bug fix for the ReadingListLib script.

The ReadingListLib script gave me an error when certain bookmarks in my bookmarks.plist file didn't have the 'ReadingListNonSync' entry in them. Added a ternerary operator. My editor also seems to have converted tabs to spaces—I'm not sure if that is a problem or not with this project.

Small improvements to the Pocket script as noted in the commit message.