first try on new design
added image of dreadnought (source: Wikimedia Commons, public domain)
added background image and changed a few colors
Merge branch 'master' into redesign to style new GUI features.

Conflicts:
	battleships/templates/play.hamlet
big ui change, including tabbed ingame sidebar
Merge branch 'master' into redesign

Conflicts:
	battleships/templates/home.hamlet
Merge branch 'master' into redesign

Conflicts:
	battleships/templates/default-layout-wrapper.hamlet
	battleships/templates/legend.hamlet
removed unnecessary templates
fixed footer
(almost) complete version of redesign