delete manifest file when a module is uninstalled
Submitted by Adam Dingle
Link to original bug (#701895)
Description
When jhbuild installs a module, it creates a file in the _jhbuild/manifests directory listing all files in the installed module. This is useful. But 'jhbuild uninstall' doesn't remove a module's manifest file when uninstalling a module. In the interest of tidiness, it should.