Disabled (hopefully) the ogg tag reading on Win and Mac.

The scons build system still asks for the library,
thus the compiling might still be broken on scons based builds.
Implemented the editor item tool.
Fix the editor theme at default resolution to match the new art set.
Fixed a merge conflict that made it in my repository.

Reverting the commit ends up in the "git revert" command not
terminating. I do not know what to do else.