Rename Boolean to Logical, to better match Taverna Workbench.
Rename Boolean to Logical, to better match Taverna Workbench.

These Booleans are only used for RShell, where they are mapped to R types.
Anywhere else, they are simply strings containing TRUE or FALSE.

jongiddy/balcazapy,jongiddy/balcazapy,jongiddy/balcazapy