given more PermGen to JDK7 for travis error
given more PermGen to JDK7 for travis error

o3project/odenos,nis-sdn/odenos,haizawa/odenos,o3project/odenos,haizawa/odenos,o3project/odenos,nis-sdn/odenos,haizawa/odenos,nis-sdn/odenos,o3project/odenos,nis-sdn/odenos,haizawa/odenos,haizawa/odenos,o3project/odenos,nis-sdn/odenos