Fix compile errors, really
Fix compile errors, really

The T parameter must be propagated somehow, so for now we declare it on
the IOService class. Since that class is instantiated at runtime, we
avoid the problem. But it is an ugly hack.

This used to be revision r5224.

biovoxxel/imagej,TehSAUCE/imagej,TehSAUCE/imagej,biovoxxel/imagej,TehSAUCE/imagej,biovoxxel/imagej