Modmerge with support for looking in dlc and root (GOG support)

This version checks the dlc folder, and the root directory for sod-dlc.zip

I've recompiled modemerge-osx with Go 1.9 which should fix the stack split errors on new version of OSX.

Initial version of modmerge

Modmerge

Tool for merging bgee/bg2ee v2.0 mods into the main game(making them weidu compatible)