update contextualizeNodesCCLE
update contextualizeNodesCCLE

- previously setting the mrna, mutations to whatever was returned
- this led to uncontextualized models when building a new model if no data was returned
- now will only set mrna, mutations to returned values if the response contains data.
- moved the update_state calls to requester as well, this leads to intended behavior
pvtodorov/pathway_map_dynamic,pvtodorov/pathway_map_dynamic