[ECCO][SDS] Default version of SAS changed to 9.4

We have changed the default version for SAS to 9.4. Only users of modules will notice the difference for now; however we remind users that use of SAS and other software outside of modules will be deprecated in the near future. For modules,

module load sas

now calls version 9.4. Using the GUI version of SAS from the desktop menu will also launch SAS 9.4. Version 9.3 remains installed, and can be called using

module load sas/9.3