Refactored to abstract details of UI

Standard game playable
Metamaze reimplemented.
setters for svg interface objects
fix meta updating
fix menu end marker colouring
Removed defaulting arguments (they work on firefox, not on chrome/safari).
Added instructions
Added a very basic editor.
Added very basic splash page.
No changes, overly sensitive thing.
Merge branch 'menu' of https://github.com/foolswood/Hexagongame.git into menu

Conflicts:
	hexagons.html