Fix copyright - my previous PR should have been against master

debian/copyright: avoiding extra "Copyright:"s

Changed my opinion on the debian/* entry since the authors are not a subset.

fix d/copyright

Flesh out copyright, based on feedback from the Debian FTP Masters.

Create d/README.source

d/rules origtarxz: Introduce common root for source tree

And an outreach to the Debian community.

no need to override dh_clean

Preparation for upload to Debian.

This was used to remove non-source files that were used by the Windows
build of mesaflash.  These files were removed from git, so there's no
need to handle them specially when running `debian/rules clean`.

exercise package-building

Fix compiler diagnostics etc

This fixes a diagnostic seen on Ubuntu 10.04 building the examples:

converting a packed 'opd_mode_1_7i77_t' {aka 'struct
opd_mode_1_7i77_struct'} pointer (alignment 1) to a 'u32' {aka 'unsigned int'}
pointer (alignment 4) may result in an unaligned pointer value
[-Werror=address-of-packed-member]