* Rename cell bottom label stuff which actually conforms to message bottom label stuff
* Add cell bottom label methods for flow layout, data source and delegates
* Add vars for cell bottom label alignment and size
* Add cell bottom label into message content cell and set layout for label
* Set attributes for cell bottom label
Add cell bottom label attributes into calculation of cell content height
* Update example project to display cell bottom label
* Set avatar position to messageBottom in example project to display avatar with cell bottom label more pleasant (cosmetic change)
* Revert "Set avatar position to messageBottom in example project to display avatar with cell bottom label more pleasant (cosmetic change)"
This reverts commit d8d215518a.
* Fix comment to capitalize word
* Add cell bottom label after message bottom label in message content cell
* Update changelog
* Calculate Y position of cell bottom label as max Y position of message bottom label
* Move layout calculation of cell bottom label after layout calculation of message bottom label (because layout calculation of cell bottom label depends on layout calculation of message bottom label now)
* Update breaking changes in changelog
* Remove MessageInputBar files and change build settings
* Conditional imports to allow for builds without MessageInputBar
* Update Cardfile
* Specify Version in Cartfile for MessageInputBar
* Remove conditional imports in favor of Carthage for local development
* Additional `import MessageInputBar`
* Remove `MessageInputBar` from Cartfile.private
* Bump MessageInputBar version
* Add Cartfile
* Tweak build settings
* Specify import of MessageInputBar for Carthage
Maxim Tsvetkov
Nathan Tannar