fixes #65, referencing the correct custom key in belongsTo relations
tests for #65 fix
release 0.5.2
removing delete operator where possible
Fix for #70, options.columns is not propagated to relations

Fix for #70, omitting options.columns when eager
loading relations.

Internal refactoring of the Collection object to match
the Model, adding the _handleResponse and _handleEager
methods. Test cleanup to match the mocha-as-promised
syntax universally.
documentation updates for 0.5.3
release 0.5.3
Merge branch 'master' into active-record

* master:
  release 0.5.3
  documentation updates for 0.5.3
  Fix for #70, options.columns is not propagated to relations
  removing delete operator where possible
  release 0.5.2
  tests for #65 fix
  fixes #65, referencing the correct custom key in belongsTo relations
not storing state inside the library