[BUGFIX beta] Better error for content set on object
[DOC beta] Update filterBy docs to show that the value can be any type
[DOC beta] typo in docs
Merge pull request #4416 from lholmquist/typo

typo in docs
Merge pull request #4096 from knownasilya/arraycontroller-not-array

[BUGFIX beta] Better error for object set on ArrayProxy
Merge pull request #4397 from Kerrick/update-docs

Update filterBy docs to show that the value can be any type
Update CHANGELOG for 1.5.0-beta.2.