Fix bonus schema to support array in duration


git-svn-id: http://svn.code.sf.net/p/vcmi/code/trunk/@3791 4dfc6b2a-8b31-0410-aa91-d6c70e3ac834
Copyright update.

git-svn-id: http://svn.code.sf.net/p/vcmi/code/trunk/@3792 4dfc6b2a-8b31-0410-aa91-d6c70e3ac834