Modified rmg_env variable names BACKUP... to RMG_BACKUP...
Modified rmg_env variable names BACKUP... to RMG_BACKUP...
Modified rmg_backup and rmg_clean to use new RMG_BACKUP... variable names.
Modified rmg_backup and rmg_env to allow optional secondary backup drive/server.
Merge branch 'pos_conf' of https://github.com/QRAAT/QRAAT
Modified rmg_env to enable secondary backups.
rmg_env: turned off backup to campus windows server
position.py: catch import error for nodes.

The better solution will be to separate the server installation
from the node installation.
Catch MySQLdb ImportError on nodes.
Merge branch 'master' into pos_conf