imatix/gitdown — pull request #8 by claws (2013-11-19 11:56:10+00:00)
Title: Add Java dependency

Gitdown was broken for me on Ubuntu 13.10 as there was no Java runtime environment installed by default. Consequently, Gitdown breaks when it tries to run ditaa using the system call. No error is raised to indicate a problem.
This pull request simply lists a Java runtime environment as an explicit dependency - which would of helped me isolate the problem sooner.
Perhaps an explicit error report would be good too.