First try at a fix for the Kindle for PC encryption update

Merge branch 'master' of https://github.com/apprenticeharper/DeDRM_tools

Regression bug fixes

Update to DeDRM to try to fix Linux python problem, and improve Adobe…

… logging

Updated obok plugin readme

Add transparency to the obok logo

Fix for plugin bug introduced in 6.3.1 for Kindle for PC

Update kobo plugin to 3.1.3 with Portuguese and Arabic translations. …

…Include .mo files in git.

Updated plugin zip with 6.3.1 files

Added support for Barnes & Noble/nook key retrieval via URL