travis-ci test
attempt to fix datomic-free: command not found
let's try again, datomic-free should be installed with its install-g dependency
the database should already be installed by dbin
should be ok now with a newer dbin
the before_script doesn't exit, so put in the background
datomic-free upgrade / use is pre-taken-care-of
let's wait a humorous 42 seconds / test
oops, not a place for scripts :)
some polished details
Merge branch 'test' into active