those popped up thanks to previous commit

mcs1 was taken instead of mcs2 in several places.

This is done in another function.

Don't do it twice.
The logic is: if ndi changed or it's a first tx then round=0
and later: if round==0 then status=ACTIVE

Note: the dci formats 2, 2A and 1E were not checked,
this has to be done. dlsch[0] and dlsch[1] (when
applicable) must be checked somehow.

Not sure at all about this one, seemed necessary to me,
but I don't get the full logic in there.

To be refined.

This is done a bit above in the code, no need to do it twice.

I am not sure this is enough. To be refined.

Some of them might not be correctly handled.
I put /* TODO: XXX */ where I didn't know if
the fix was correct.

see issue #177

fix incorrect fss_pusch calculation
fix the incorrrect HARQ-PID checking
remove incorrect checking on downlink DCI HARQ PID value
fix incorrect downlink ACK/NACK feedback procedures in TDD
fix no activating PDSCH decoding when DL-DCI is indicating a downlink retransmission

see issue #176

           2- reset dataTx buff correctly
           3- pucch/pusch power control fix

People are complaining on the mailing list about this.
It's not an error to receive a retransmission.