Show object properties on log-line mouseover
Show object properties on log-line mouseover

I don't want to turn the log properties on and off all the time. A
mouseover now shows all the properties for an object over on the left.
This was sized for my macbook so it won't look great on every setup but
it's good enough for now.

cwmaguire/erl_mud,cwmaguire/erl_mud,cwmaguire/erl_mud