Bug#751949: Do not compress .map file in doxygen generated documentation

[Mathieu Malaterre <malat@debian.org>]

Package: lintian
Version: 2.5.10.4

It would be nice it lintian would report a warning for -doc package
generated by doxygen containing compressed .map files (.map.gz).

map file should be stored as plain text (not compressed), see:

http://www.w3schools.com/tags/tag_map.asp

no browser actually support compressed map file.

Here are a list of potential package affected:

https://packages.debian.org/search?mode=path&suite=wheezy&section=all&arch=any&searchon=contents&keywords=.map.gz

Technically it should be hard to compress them now that
https://bugs.debian.org/704443 is fixed. It may only affect older
package.