RTKLIB demo5 b26a binaries

Changes between b26 and b26a

Time tag adjust added to RTCM encoding (messages 1002/1010) to adjust code and phase measurements for rounding in time tag due to 1 msec resolution in RTCM format
Bug fix for time tag adjust in decode_rxmrawx()
Added a feature to incorporate receiver estimates of code and phase stdevs into measurement variances (pos2-rcvstds=on/off)
Modified encoding of stdevs into the RINEX observation files to a standard format for all receivers
Added a feature to exclude a single satellite from ambiguity resolution every epoch for which the number of satellites is larger than a configurable limit (pos2-mindropsats). Each epoch a different satellite is excluded. If excluding the satellite results in a significant improvement in the AR ratio, then that satellite is removed from the list of satellites used for AR.
Modified static-start solution mode to return to static and reset the position if the rover has been inactive for more than 5 minutes

Compatibility issue between b26 and b26a

Because of the format change in stdevs in the RINEX observation files, data converted to RINEX with demo5 b26 code must be reconverted with demo5 b26a code if the pos2-rcvstds feature is enabled.