Rename `WindowsCollection` to `WindowsOfCountCollection`

Update the changelog/README for the 0.2.1 release (apple#145)

Update changelog for 0.2.0 release (apple#144)

Fix associated type inference error in release build (apple#130)

Update changelog for 0.1.0 release (apple#128)

Update changelog for 0.0.4 release (apple#120)

Update changelog for 0.0.3 release (apple#86)

Update changelog for 0.0.2 release

Initial import