t: rose task-run --cycle=CYCLE

New test.
Merge pull request #1269 from matthewrmshin/t.rose-task-run--cycle

t: rose task-run --cycle=CYCLE
#1265: fix
Merge pull request #1274 from benfitzpatrick/1265.rose-edit-group-bug

#1265: rose edit: fix right clicking on group in STASH widget