mixins moved to their own files
minor changes
Merge branch 'dataelement' of https://github.com/cleandart/clean_data into DataRef
Not done yet
DataReference
New test, fix bug with references.
Merge DataList with DataReference
Data reference
Adding tests for DataReference
Pretifying code
Chill
Removing ListMixin
Adding test passing same datareference multiple times
Reducing all to replaceRange