Lintian 2.2.13

This is mainly a random bug fix release (and alas mostly new bugs rather than digging into the backlog). The main fix of interest is to info files. Now that install-info uses triggers, install-info should no longer be run from maintainer scripts and info files are required to contain the categorization information used by install-info. This meant significant simplification and a few new checks in that part of Lintian.

This release also includes work by Raphael Geissert to allow Lintian to check multiple archive areas. I plan on upgrading lintian.d.o in the near future and enabling checks for contrib and non-free as well as main. This may need some additional debugging before it works smoothly as Raphael ran into some problems during testing and proposed a fix I wasn't sure about.