OPAL-2570 - add the UI to add R Options
OPAL-2570 - saved the options in the current R Session
OPAL-2570 - set the R options in a new datashield user session
OPAL-2570 - added more validation to spot function names including those with namespaces
Merge pull request #606 from kazoompa/feature-OPAL-2570

OPAL-2570
OPAL-2579 Identifiers mapping is not required and handle error when databases cannot be fetched at import data.
OPAL-2578 Fix datasource permissions
Ensure user has access to /tmp folder
OPAL-2568 Ensure some system folders exist at opal start
OPAL-2577 /system/charset resource added and used with csv and spss.