Latest commit e2006fd May 16, 2017 russell More signal word, to do hand editing.
While I follow along 'Tutorial 2', I stuck at this point.
In 'Tutorial 1', I generated 'boot.properties' `boot -V > boot.properties`.
So I thought that "by upgrading boot-clj somehow (with means not specified
in tutorial 2) I should make my boot.properties"

But I could not find how to upgrade my boot-clj
and by hand editing It was working.

so more singal might be good to somebody.