Show name in "applying X to Y" log messages

[blowfishpro]

Especially with copy patches, you can end up with multiple nodes in the same base config, so it can be difficult to distinguish between them. Basically now we have log messages like this:

Applying update Path/To/Update/@PART to Path/To/Part.cfg/PART

which should be

Applying update Path/To/Update.cfg/@PART to Path/To/Part.cfg/PART[partName]

(might as well normalize extension usage too)