build recovered after plugin.hpp changes

git-svn-id: http://farmanager.googlecode.com/svn/trunk@12509 ea59307d-ff68-5b67-5a21-acd59c66a581
Changelog.

git-svn-id: http://farmanager.googlecode.com/svn/trunk@12510 ea59307d-ff68-5b67-5a21-acd59c66a581