turn the VotingCookie into a value object
add a factory for creating the voting cookies
don't need this binding any more
get the voting cookie from the utility class
fix the tests
do need this binding after all
rename the cookie methods to be specific to the voting cookie
hide the voting cookie semantics behind a value object
style the voting buttons so the page doesn't move around when placing a vote
introduce some caching to prevent the cookie being loaded once for every session when loading the sessions page