References are made only when needed.
Clone
cleanify without refs
changeSets made lazy
.
more lazy init
making everything lazy
DataList uses DataReferences optionally.
Fix tests and repair sorted_list_view
Refactore usage of references in DataMap
_silentAddAll is really silent in DataSet
Some changes.
Merge branch 'effective_refs' of https://github.com/cleandart/clean_data into profiling
Fix tests.
Fix in lists.
test added
Fix
Remove debug info.
Comments.
Fix warnings during compilation to javascript.