MMS Spinfits update, calculate the time for spinfit in Matlab as first time after start of time series evenly divisible with fitEvery (default 5*e9 ns), ie time like [00:00:00.000...]; and [00:00:05.000...]; etc. Also add a fix for large data gaps (such as the example file 2016/01/01 used in MRT9 test for Slow L2Pre).