1. Add my key to your keyring.

2. Create a file Blob.all by (Unix: cat) (Windows: xcopy) the files in this order: (Should be *.lua *.xml in an average shell)

karmaAchievements.lua karmaBase.lua karmaChat.lua karmaDB.lua karma.lua karmaSlash.lua localization.de.lua localization.fr.lua localization.lua localization.tw.lua
bindings.xml karma.xml karmaWndLFG.xml karmaWndMain.xml karmaWndOpt.xml

3. gpg --verify Blob.asc Blob.all

That should output:
gpg: Good signature from "Coren"