Bug#963668: debian/nginx-common.install

[Bryce Harrington]

The apport hook also needs this bit of delta added for installation:

--- a/debian/nginx-common.install
+++ b/debian/nginx-common.install
@@ -1,5 +1,6 @@
 contrib/vim/* usr/share/vim/addons
 debian/conf/* etc/nginx
+debian/apport/source_nginx.py usr/share/apport/package-hooks
 debian/ufw/nginx etc/ufw/applications.d
 debian/vim/nginx.yaml usr/share/vim/registry
 html/index.html usr/share/nginx/html/