Update of documentation for rose-stem; also adds --group as a clearer synonym for --task
Updated after feedback from Ben
Further issues and Fortran format
Added scannable but not runnable hosts option.
Debug code tidy.
Removed comment
Tidy up for sgc.
Using entry scan-hosts rather than scan
Further tidy-up of code
Style change for consistency
Merge pull request #635 from scwhitehouse/doc-update

Update of documentation for rose-stem. Closes #557.
Refactored repeated node calls.
Further reduction in redundancy.
Merge pull request #659 from arjclark/rose-scan-and-hosts

rose.conf: add a section for scannable hosts
Merge branch 'master' into gh-pages