Summarize a timeline written in text.
The version 3 of the GNU General Public License, or (at your option) any later version, applies to this source code.
Prerequisite: install the [pro](https://github.com/forax/pro) build tool.
To build:
$ pro
To release:
$ version=0.3 $ git tag -am "v$version" "v$version" $ ./release "$version"