Commit prior to starting Bering ST sims (generic sims for CPIF, STPC being rerun).  This commit fixes a large number of bugs, including

-needed to have tau_eta update before beta update (requires mu.pred object which is a function of beta and defined in the mu update)

-Fixed big 'K' matrix for spatio-temporal random effects

-Now uses all mu values for spatial-temporal random effect updates (CPIF, STPC)

-Fixes error in 'conditioning by kriging' for STPC, CPIF

-now incorporates intercept and slope parameters for time series associated with each knot in STPC, CPIF

-now subtract off Log.area.adjust in Dat.minus.exp in spatio-temporal random effect updates