omd 1.0.0

Before merging, please make sure that updating all packages that depend on OMD is the right thing to do.

(and please check that syntax, as in `{>= "0.8.2" && < "1.0.0"}`, is correct...)

edit: following @dsheets 's comment, it's now using `{>= "0.8.2" & < "1.0.0"}` instead of `{>= "0.8.2" && < "1.0.0"}`