Fix leak with redirect

[ybonnel]

When you call Inspect with a leading "/" in name (which is a value you have when getting name from a precedent inspect), docker engine first answer with a redirect.

Without the dispose, first request ends with a response not disposed.
On docker windows we ends with a leak of file handle on the named pipe.

[HofmeisterAn]

FYI: This repo isn't very active anymore. We've forked it and are adding important fixes and improvements there. We're also working on refactoring the API to be closer to how docker-java works. Your issue has already been fixed in the forked version.

[ybonnel]

@HofmeisterAn thx a lot for the information.

Will try to change my dep to your fork to see if I can migrate easilly.