Convert TeXinfo files to HTML

Current version

texi2html requires the following formula to be installed:
gettext GNU internationalization (i18n) and localization (l10n) library

Reverse dependencies

The following formulae require texi2html to be installed:
ffmpeg 3.3.4 Play, record, convert, and stream audio and video
libav 12.1 Audio and video processing tools

Formula history

Dominyk Tiller urls: update savannah to use https
Tomasz Pajor texi2html 5.0
Xu Cheng texi2html: better test
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Ted Pennings Convert all 'def test' formulae to 'test do'
Mike McQuaid texi2html: add bottle.