Fixed issue with isValidNode() not always being passed a Doctrine_Record and fixed issue with params being sent to set(), moved to where() until set() can handle params
Fixed issue with isValidNode() not always being passed a Doctrine_Record and fixed issue with params being sent to set(), moved to where() until set() can handle params

git-svn-id: c8c49e1140e1cd2a8fb163f3c2b0f6eec231a71d@2147 625475ce-881a-0410-a577-b389adb331d8

ascorbic/doctrine-tracker,bkw/doctrine