Make `coerce-custom-type-id` private
Print warning when replacing a custom type reader
v2.7.0-SNAPSHOT
Revert "Temporarily revert `expectations` dep bump due to #40"

This reverts commit e17a7f8248db7667ff4123ac6a16120f88dc12fb.

Expectations v2.0.8 fixes this issue, Ref.
https://github.com/jaycfields/expectations/issues/40#issuecomment-50468973
Switch to Break Versioning
Bump deps
v2.7.0-RC1
Merge branch 'dev'