The dictionnaries are hard to follow. We define one in Gaia.webapps.forEach and then eventually set it in optimize_concatL10nResources.
Wouldn't it make sense to directly set both of them on the webapp object instead of having these intermediate dictionaries?
```
webapp.minimalDictionary = newDictionary();
webapp.fullDictionary = newDictionary();
...
webapp.minimalDictionary[mozL10n.language.code] = mozL10n.getDictionary(docElt); 
webapp.fullDictionary[mozL10n.language.code] = mozL10n.getDictionary(); 
```
?