Make numpy floats into pure Python floats for MDS.
Make numpy floats into pure Python floats for MDS.

tacaswell/dataportal,danielballan/datamuxer,NSLS-II/dataportal,NSLS-II/dataportal,danielballan/dataportal,danielballan/datamuxer,NSLS-II/datamuxer,danielballan/dataportal,tacaswell/dataportal,ericdill/datamuxer,ericdill/databroker,ericdill/databroker,ericdill/datamuxer