Range for grades while logging work or ascents

[davegrm]

It could be really nice for users who are non committal about grades to give things they are working, like projects which are added to the database, a range for a grade, i.e. 8b-8c. Same goes for FA's or even ascents, it could be nice to add a range feature to the grading field, that way people can get away with proposing range for a new boulder if they aren't convinced of their effort, or as well suggest stuff for undone things.