Switch to intel/18 on gaea

- The compiler versions used in the gaea pipelines are encoded in
  the MRS package of scripts. This commit switches to the master
  branch which will now pull the latest version of MRS.

.gitlab-ci.yml

@@ -32,13 +32,11 @@ setup:
     - git clone --recursive http://gitlab.gfdl.noaa.gov/ogrp/Gaea-stats-MOM6-examples.git tests && cd tests
     # Install / update testing scripts
     - git clone https://github.com/adcroft/MRS.git MRS
-    - (cd MRS ; git checkout xanadu-fms)
     # Update MOM6-examples and submodules
     - (cd MOM6-examples && git checkout . && git checkout dev/gfdl && git pull && git submodule init && git submodule update)
     - (cd MOM6-examples/src/MOM6 && git submodule update)
     - test -d MOM6-examples/src/LM3 || make -f MRS/Makefile.clone clone_gfdl -s
     - make -f MRS/Makefile.clone MOM6-examples/.datasets -s
-    #- (cd MOM6-examples/src/mkmf && git pull https://github.com/adcroft/mkmf.git add_coverage_mode)
     - env > gitlab_session.log
     # Cache everything under tests to unpack for each subsequent stage
     - cd ../ ; time tar zcf $CACHE_DIR/tests_$CI_PIPELINE_ID.tgz tests