* Autolabor: add 'haulpct' config option to control percentage of non-idle dwarfs assigned to hauling labors (default is 33)
* Zones: allow nontamed birds to be nestboxes. warning: does not check for 'hostile to civilization' birds, so if you try to tame a hostile elk bird, !!fun!! will happen
* Stripcaged: changed default behavior to keep armor, reduced noisiness