* RN-173 Added support for Markdown images
* RN-173 Added proper alt text when image fails to load
* Changed (edited) indicator not add itself as a child of an image
* RN-173 Removed space between an image and the following text
* Made sure MarkdownImage is mounted when setState is called
* Fixed images in links having their location overwritten
* Made images work in links
* Fixed uppercase links not working on Android
* Added vertical margin around images
* RN-173 Added styling for markdown image error text
* RN-173 Added error when image exceeds max dimensions on Android
* Removed Emoji padding prop
* Reduced emoji size on Android
* RN-189 Fixed aspect ratio for wide emojis
* Removed margins from headers which didn't actually work
* RN-189 Fixed aspect ratio for tall emojis
* Adjusted line height so emojis don't cause uneven spacing on iOS
* Further reduced emoji size on Android
* Slightly adjusted vertical alignment of emojis
* Added hack to get vertical alignment of emojis looking better