Issue #1361228 by marcingy, Niklas Fiekas, fago, cosmicdreams, aspilicious, tim.plunkett et al: Make the user entity a classed object.
Issue #1361234 by duellj, loganfsmyth, aspilicious, cosmicdreams, fago, amateescu, sun: Added Make the node entity a classed object.
Issue #1361234 follow-up by Berdir: Fix random test failures.
Issue #1361234 by Berdir: Make the node entity a classed object - followup for node revision timestamps.
Merge pull request #130 from dboulet/1.x

Remove .DS_Store file.
Issue #153: Make the node entity a classed object. Fixing affected comment tests.
Issue #153: Convert node entities to classed objects. Correcting docblock class names.
Issue #153: Fixing minor typo in docblock.
Merge pull request #129 from quicksketch/155/user_classes

Issue #155: Convert user entity into a classed object.
Merge pull request #131 from quicksketch/153/node_classes

Issue #153: Make the node entity a classed object.
Issue #1401558 by exlin, Berdir, tim.plunkett: Remove the usage handling logic from file_delete().
Issue #1361226 by Berdir, aspilicious, cosmicdreams, fago: make the file entity a classed object.
Issue #152: Update views tests for file classes.
Merge pull request #132 from quicksketch/152/file_classes

Issue #152: Make the file entity a classed object.