Merge branch 'update/cam_gpu_clubb' into 'develop' (PR #72)

Bring in upstream tag cam6_4_019 into EarthWorksOrg/CAM for the GPU
CLUBB changes.

Also update to cdeps1.0.45 to match the cam6_4_019 version. cdeps tags
between cdeps1.0.38 and cdeps1.0.44 caused some test failures in
ESCOMP/CAM.

.gitmodules

@@ -59,7 +59,7 @@
         path = components/cam
         url = https://www.github.com/EarthWorksOrg/CAM
         fxDONOTUSEurl = https://www.github.com/ESCOMP/CAM
-        fxtag = cam-ew2.3.003
+        fxtag = cam-ew2.3.004
         fxrequired = ToplevelRequired
 
 [submodule "clm"]
@@ -97,7 +97,7 @@
         url = https://github.com/ESCOMP/CDEPS
         fxDONOTUSEurl = https://github.com/ESCOMP/CDEPS
         fxrequired = ToplevelRequired
-        fxtag = cdeps1.0.43
+        fxtag = cdeps1.0.45
 
 [submodule "cmeps"]
         path = components/cmeps

cime_config/usermods_dirs/eworg_opt_clubb/user_nl_cam

@@ -0,0 +1,3 @@
+clubb_l_diag_lscale_from_tau = .true.
+clubb_penta_solve_method = 2
+clubb_tridiag_solve_method = 2