Added
  epetw in GRID_VARS_template,
  rnetd,xled,hd,gd,dshd,rnetw,xlew,hw,gw,dshw in GRID_VEG_template
  tkd,tkmidd,tkw,tkmidw in GRID_VEG_template
Removed 15 variables in MODULE_CANIOY, Updated TEST_DRIVER
Added tests for clc_evrz
Merged with master branch and resolved conflict
Added tests for zero_snowvars
Added tests for acttrans
Added tests for clcdg
Merge branch 'Wang'
Merge branch 'Colby'