bug with adding the same plugin fixed
bug with adding the same plugin fixed

fabioz/PyDev.Debugger,fabioz/PyDev.Debugger,simudream/PyDev.Debugger,fabioz/PyDev.Debugger,Elizaveta239/PyDev.Debugger,SylvainCorlay/PyDev.Debugger,simudream/PyDev.Debugger,SylvainCorlay/PyDev.Debugger,Elizaveta239/PyDev.Debugger,Elizaveta239/PyDev.Debugger,Elizaveta239/PyDev.Debugger,SylvainCorlay/PyDev.Debugger,fabioz/PyDev.Debugger,simudream/PyDev.Debugger,Elizaveta239/PyDev.Debugger,fabioz/PyDev.Debugger,simudream/PyDev.Debugger,SylvainCorlay/PyDev.Debugger