Untag for development
Fix an overzealous warning on 32-bit systems
Suppress some warnings that only seem to appear on Fedora

Using gcc 4.8 and 2.17 works fine on Debian, but not Fedora.

I'm planning on a better fix eventually, once I have distinct types
for integers of a specified endianness.
Don't break gcc < 4.8 with warnings on
Move contents of make.defs where they belong
Add gcc 4.8 to travis spec
Handle far extensions in the mapname extractor

This has no effect with the current content, but will make
things much more convenient once we start using longer mapnames.
Fix bug with mapnames being falsy

Fixes #7
Fix a bug in @command logging
On travis, use native clang matrix and add exclusion rules

Hopefully this will fix whatever keeps timing out with apt-get install.
Release v13.8.28