Remove Contrib Repo comment, see url variable instead.
Move pacman packaging files to pacman/
Don't download install/changelog files

It quickly became cumbersome to work with it...
Drop pkgrel part from git url
Use url variable in git source declaration
Release 1.1.0-4

- Do not download install script or changelog (it became cumbersome to
  work with...)
- Move packaging files to pacman/ directory
- Tidy up git URL
- Remove unnecessary Contrib Repo comment - see the url variable instead