session.his_read_series was giving only one value (the first of the serie)
session.his_read_series was giving only one value (the first of the serie)

closes #18

Signed-off-by: Christian Tremblay <31ac1ca2e4859489ad6997067c1b3a4264642859@servisys.com>

vrtsystems/pyhaystack,ChristianTremblay/pyhaystack,ChristianTremblay/pyhaystack