Hao Wang

@feiranl good idea in providing different MNX versions in `mapIDsViaMNXref` function.

@ae-tafur nice work. A quick notice, you were saying that `this removes the following genes`, where the `YCL005W-A` was not mentioned.

agree

> What about the case is multiple annotations can be linked to the same reaction or metabolite? MetaNetX IDs are for instance not unique. The multiples values could be separated...

I'd like to recommend an optional filed `version` to this upcoming unified model structure. It is new, but should be super helpful for storing the model version (e.g. `8.3.3`) to...

>If no version is provided, whats the default we put there? Or do we just not add it. My idea is to make it optional, so just leave it out...

@feiranl thanks for posting the issue. This could be a useful feature for GEMs. It can be added as a reaction-associated feature, according to the MetaCyc scheme.

@simas232 if SEED applies this value for determining reversibility?

@edkerk MetaCyc does provide deltaG only at unique condition (pH 7.3 and ionic strength 0.25). What other conditions do you suggest?

would be nice to preserve the git history when migrating the files