Some files cannot be deleted on Windows

[Jonathing]

After MinecraftMaven does its job, I ask it to force delete directories that should not exist. These directories are the temporary directories needed for recompilation to work properly. Unfortunately Windows might not allow some files to be deleted. In my own testing, this has consistently been in cache/../recompiledSources/META-INF/MANIFEST.MF.

I've partially worked around this in commit d2d031f, but it might be something worth noting as this project gets cleaned up in the future.

[LexManos]

May be worth asking windows for a temp directory instead of using a manual one in cache?