Revert "Remove packaging files"

This reverts commit 3abf06d5b4c321c12a33eeaea1826a731c50011e and starts
the "package" branch that will contain packaging files. The "master"
branch will periodically be merged into "package", but "package" shall
never be merged into "master".

The "master" branch will thus determine the pkgver package variable, and
the "package" branch will determine the pkgrel variable.
Release 1.1.0-1
Add changelog
Release 1.1.0-2
Fix GitHub URL (mistake in 7449bf26)

Fix mistake in 7449bf26e13ed201b578af8412596c36d95f7a7a
Remove replaces= variable
Remove unnecessary cd in package()
Use install variable for install script in sources array
Add changelog file to sources
Add md5sums
Fetch sources via git
Download install and changelog files if nonexistent
Release 1.1.0-3

- Remove use of replace= variable
- Update GitHub URL
- Fetch sources (including install script and changelog) from GitHub
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