Merge pull request #893 from dgergel/feature/add_precip_cesm_default_outputs

added precip back in as default output variable for cesm driver

Author: bartnijssen

vic/drivers/cesm/bld/vic.globalconfig.txt

@@ -66,6 +66,7 @@ OUT_FORMAT  NETCDF4_CLASSIC
 HISTFREQ    NMONTHS 1
 OUTVAR      OUT_RUNOFF
 OUTVAR      OUT_BASEFLOW
+OUTVAR      OUT_PREC
 OUTVAR      OUT_EVAP
 OUTVAR      OUT_SOIL_TEMP
 OUTVAR      OUT_SOIL_TNODE