Update debian files and .gitignore

[fuhry]

• Sync debian package version to upstream version
• Add debhelper-generated files to .gitignore

[coveralls]

Coverage decreased (-15.04%) to 44.724% when pulling e8999bc on fuhry:debian-files-update into edd1623 on ldx:master.

[fuhry]

Hi @ldx! We at @datto are using your Python module for an internal project, and updated the build files for Ubuntu 16.04. We can build against my branch but as a rule we try to submit improvements back to upstream when possible.

Specifically could you let me know if you need the distro codename changed back, or other tweaks made to the control and changelog files? The python-support package was removed after Ubuntu 14.04, hence the removal of that dependency.

[ldx]

@fuhry when I try to build a package from your branch it fails with:

 dpkg-source -b python-iptables
dpkg-source: error: can't build with source format '3.0 (native)': native package version may not have a revision
dpkg-buildpackage: error: dpkg-source -b python-iptables gave error exit status 255

This is on Debian 8. Seems dpkg does not like the new revision number 0.12.0-1. Changing it to 0.12.0.1 fixes the problem for me.

[fuhry]

@ldx Sorry for the delay, but I've just fixed this and resolved the .gitignore conflicts. This should be ready to merge now.

[coveralls]

Coverage increased (+14.8%) to 59.975% when pulling d0fab0d on fuhry:debian-files-update into a71f64f on ldx:master.

[coveralls]

Coverage increased (+14.8%) to 59.975% when pulling e947af1 on fuhry:debian-files-update into a71f64f on ldx:master.

[ldx]

Thanks!