Doc clarifications (Java vectors, test working dir, benchmark fix).

Change-Id: If8cc05669d82df892e1d4e11f7fbbd68b2dc05bf
JSON text output now optionally doesn't output linefeeds either.

Change-Id: Iedac80ee00b27a97c21c7b4ac7c9792e5bafbcc8
Tested: On Windows
Merge "sh script for JavaTest" into ub-games-master
Merge "show absolute path to user when aborting" into ub-games-master
Merge "license is a comment, not an echo" into ub-games-master