Issue NOAA-EMC#5 - Sync merge branch 'feature/gfsv16b' into port2orion

* feature/gfsv16b:
  Update README.md
  modified:   Externals.cfg and  sorc/checkout.sh to check out model tag GFS.v16.0.7    and UPP tag upp_gfsv16_release.v1.0.9.  Changes include:
  Update version of upp in Externals.cfg to be consistent with sorc/checkout.sh

Externals.cfg

@@ -1,7 +1,7 @@
 # External sub-modules of global-workflow
 
 [FV3GFS]
-tag = GFS.v16.0.6
+tag = GFS.v16.0.7
 local_path = sorc/fv3gfs.fd
 repo_url = https://github.com/ufs-community/ufs-weather-model.git
 protocol = git

README.md

@@ -6,7 +6,6 @@ The global-workflow depends on the following prerequisities to be available on t
 * workload management platform / scheduler - LSF or SLURM
 * workflow manager - ROCOTO (https://github.com/christopherwharrop/rocoto)
 * modules - NCEPLIBS (various), esmf v8.0.0bs48, hdf5, intel/ips v18, impi v18, wgrib2, netcdf v4.7.0, hpss, gempak (see module files under /modulefiles for additional details)
-* manage_externals - A utility from ESMCI to checkout external dependencies. Manage_externals can be obtained at the following address and should be in the users PATH: https://github.com/ESMCI/manage_externals
 
 The global-workflow current supports the following machines:
 
@@ -18,20 +17,11 @@ The global-workflow current supports the following machines:
 
 ### 1. Check out components
 
-The global-workflow uses the manage_externals utility to handle checking out its components. The manic-v1.1.8 manage_externals tag is supported. The manage_externals utility will be replacing the current checkout.sh script.
-
-Run manage_externals (checkout_externals) while at top of clone:
-
+While in /sorc folder:
 ```
-$ checkout_externals -e Externals.cfg
+$ sh checkout.sh
 ```
 
-If checkout_externals is not in your $PATH then use full path to it:
-
-* WCOSS-Dell: /gpfs/dell2/emc/modeling/noscrub/emc.glopara/git/manage_externals/manic-v1.1.8/checkout_externals
-* WCOSS-Cray: /gpfs/hps3/emc/global/noscrub/emc.glopara/git/manage_externals/manic-v1.1.8/checkout_externals
-* Hera: /scratch1/NCEPDEV/global/glopara/git/manage_externals/manic-v1.1.8/checkout_externals
-
 ### 2. Build components
 
 While in /sorc folder:

sorc/checkout.sh

@@ -59,7 +59,7 @@ if [[ ! -d gfs_post.fd ]] ; then
     rm -f ${topdir}/checkout-gfs_post.log
     git clone https://github.com/NOAA-EMC/EMC_post.git gfs_post.fd >> ${topdir}/checkout-gfs_post.log 2>&1
     cd gfs_post.fd
-    git checkout upp_gfsv16_release.v1.0.8
+    git checkout upp_gfsv16_release.v1.0.9
     cd ${topdir}
 else
     echo 'Skip.  Directory gfs_post.fd already exists.'