User visible changes in the firmware version 3.5.10 since version 3.5.9.

                             Highlights.

1. [NP] and [NR] messages: fixed output of coordinates having integer
   number of degrees.

2. GNSS100, GNSS100GG: correct switch ports SER_B and SER_D to
   RS232/RS422 mode.

3. IRIG: add support for boards with inverted AMP_SHDN signal.

4. RTCM3.2 MSM messages decoding: added required checks for validity
   of phases and pseudo-ranges.

5. The check of message's mask in RTCM3.1 transformation messages
   has been changed to strongly correspond to RTCM standard.

6. TRE_G2TH: support borad rev.9.
   

                      More Detailed Description
                (refer to GREIS for even more details)


                             1. Messages.

No changes.

                             2. Parameters.

No changes.

                             3. Options.

No changes.

                             4. Commands.

No changes.

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