imwheel-1.0.0pre12-bp150.2.5

- Clenaup spec file with spec-cleaner
- Include %changelog in spec file
- Trim dependencies

- license update: GPL-2.0+
  No indication in package that GPL-2.0 (i.e. "only") is intended

- Macro replacing "makeinstall" => "make_install"
  via `spec-cleaner` was reverted to build at SLE_11_SP2.

- Spec header and changes file were added to correspond to distro policy.
- License tag was set to GPL-2.0 to correspond to distro policy.
- Spec file was fixed up via `spec-cleaner`.
- Patches were commented to correspond to distro policy.
- Clean section was removed as unnecessary.