Allow full action and chat history logs

Added a link to the bottom of the game page to show full action and chat history. Made them both ten entries long by default. And made the end-of-game page show the full history automatically.

Resolves #366.
Resolves #598.
Resolves #616.

http://jenkins.buttonweavers.com:8080/job/buttonmen-AdmiralJota/19/