Code review comment for lp:~widelands-dev/widelands/constructionsite_options

Took care of the warnings and fixed the input queue layout.

> src/graphic/animation.cc:451] Requested unknown animation with id: -432781024

A backtrace would be helpful…
Did you get this while an (enhanced?) constructionsite was being built, or when a constructionsite was being completed? I got similar crashes before, but I thought I had caught all corner cases now…