moved 'NCores = …' to top of countfaMCMC-covars.R for easier manual setting of number of cores
added new speachMemcovaraiteDRM.csv with more co-variates (year67=1 if speech took place in 1867, 0 if in 1866)
adjusted X and Y defs in speachMemcovariate.R and commented covariates col.number and values