metomi/rose#25: implement optional config flags for variables
metomi/rose#25: fix opt load error checking
metomi/rose#25: update for latent and no-metadata variables
metomi/rose#25: implement feedback
metomi/rose#25: fixes
metomi/rose#25: display text on click
metomi/rose#25: better flag text presentation
Merge branch 'master' into 25.rose-edit-opt-confs
metomi/rose#25: fix for large valuewidgets
metomi/rose#200: add titles and descriptions to add menu
Merge pull request #672 from benfitzpatrick/200.add_title_desc_latent

#200: add titles and descriptions to add menu
Merge pull request #670 from benfitzpatrick/25.rose-edit-opt-confs

#25 - rose edit optional configuration enhancement