Make these protocol methods optional by default so they getting warnings.
Update protocol to include the contact picker.
Update readme to include the changes to the protocol
Make sure to use the contactPicker parameter in the delegate methods. Update readme
Change names to match Apple's delegate naming pattern by adding the past tense of 'do': 'didShow' and 'didHide'
Change protocol method signature from contactPicker:updateViewHeightTo: to contactPicker:didUpdateContentHeightTo:
Merge pull request #33 from Citrrus/feature/ChangeSizingProtocolMethodsToIncludeTheContactPicker

Feature/change sizing protocol methods to include the contact picker