A new VAR build to fix the problem of incorrectly opening RTTOV coefficients files

• See ​ops:ticket/1662 for a description of the bug and its fix

• ​ops:source:main/branches/dev/jinlee/r8942_ops-2018.02.2_nci_gmi_fix@11702 has a fix that corrects the bug of not opening RTTOV coefficients files correctly

• ​var:source:main/branches/dev/jinlee/r3686_var-2018.02.0_gmi_fix@5922 uses the new OPS branch to build VAR