Add UTF-8 note also to developer standards page.
Use literal_emphasis node to render CLI command and prepend omero

Following a discussion with Helen, we decided to now use the default_role to
mmarkup commands instead of the :command: role.
Writing web template page edits
Review all occurences of command and omerocmd across the doc

- omerocmd role is now completely OS independent and :omerocmd:`command subcommand` now displays as  omero command [subcommand]
- when paths are needed, command/omerocmd are converted using file markup, e.g. :file:`bin/omero`
- all other command are marked using the default role, e.g. `command`
Preprend omerocmd index entries with "omero" for clarity
Update Readme to document command/omerocmd formatting changes
Use literal role instead of default role when displaying commands
Merge pull request #243 from hflynn/dev_edits

Developer doc tidying 2
Additional command fixes noticed by Helen
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 245 (Add note about Java UTF-8 source in Insight.)
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken: PR 248 (Command formatting (see #10213))
merge dev_4_4 -D org -I include -E conflict -E needs-fixes -E broken

Repository: openmicroscopy/ome-documentation
Updating 2759d65..5e623e1
Merged PRs:
  # PR 245 mtbc 'Add note about Java UTF-8 source in Insight.'
  # PR 248 sbesson 'Command formatting (see #10213)'

Generated by OMERO-merge-stable#157 (http://hudson.openmicroscopy.org.uk/job/OMERO-merge-stable/157/)