renamed gaussian_dlm_log to gaussian_dlm_obs_log

Author: jrnold

misc/dlm/fx_equicorr.stan

@@ -33,5 +33,5 @@ transformed parameters {
   }
 }
 model {
-  y ~ gaussian_dlm_log(F, G, V, W, m0, C0);
+  y ~ gaussian_dlm_obs(F, G, V, W, m0, C0);
 }

misc/dlm/fx_factor.stan

@@ -24,5 +24,5 @@ transformed parameters {
   }
 }
 model {
-  y ~ gaussian_dlm(F, G, V, W, m0, C0);
+  y ~ gaussian_dlm_obs(F, G, V, W, m0, C0);
 }