minor memory leak

git-svn-id: http://farmanager.com/svn/trunk@10113 72235d2c-c60c-0410-a47a-a0032694dc5d
more 3351

git-svn-id: http://farmanager.com/svn/trunk@10115 72235d2c-c60c-0410-a47a-a0032694dc5d
undo 3352

git-svn-id: http://farmanager.com/svn/trunk@10117 72235d2c-c60c-0410-a47a-a0032694dc5d
crash with multiple plugins of the same GUID

git-svn-id: http://farmanager.com/svn/trunk@10119 72235d2c-c60c-0410-a47a-a0032694dc5d