Maintainers' Corner

Release/RC checklist

Update libusb/version.h. If RC, set LIBUSB_RC to "-rc1", etc.
Update NEWS (and additionally TODO/THANKS)
Update AUTHORS and make sure anybody listed with the following is present:
```
git shortlog -s | cut -c8-
```
Run ./autogen.sh
Run make distcheck
Run make docs-upload in the docs directory
Test the release tarball
If any bugs were pending actual release, close them.
If bugs were pending to the milestone, that haven't been completed, move them to the next release (is there a way to automate that process?). Ensure that the milestone is closed. NB: should we create an issue for the actual release deliverables so that the milestone closing date is accurate?
Upload the snapshot(s) (if not automated) and make sure the source tarball is set as the default download
Update the project's web page if needed
Check that the SourceForge tarball download actually works
Send a release notification to libusbx-devel, libusb-devel and linux-usb