* MM-11318: Expands shortened links inline.
* MM-11318: Accepts only image/* mime types. Switches to HEAD request.
* MM-11318: Fix for YouTube links.
* MM-11318: Renames function because it handles non-images.
* MM-11318: Checks for unmounted. Doesn't request known youtube redirects.
* Fix getting the youtube video id regardless where the id is defined in the link
* feedback review
* Simplify and add unit tests for getYouTubeVideoId
* Add Channel Info Edit options to ChannelInfo screen
Refactor CreateChannel to CreateChannel and ChannelInfo
Add EditChannel screen
add updateChannelRequest
display header option only if channel is DM or GM
Add editing prop to ChannelInfo
Add saving state to ChannelInfo
Clean up EditChannel and change saving to updating
Add channel name (url) field in EditChannel
Clean up enableRightButton logic for EditChannel
Add error handling for EditChannel fields
Remove leftButton declaration from EditChannel
Add wrapWithPreventDoubleTap to click handlers in ChannelInfo
Move channel info to parent component (CreateChannel)
Add editing support for channel info in parent component
Remove ownProps from connected components
Remove passing parent props using the spread operator
* Strip out channel url field from EditChannel
* Comment out channelUrl textInput ref
Make eslint happy
* Remove injectIntl in favor of intl context props
* Add mobile prefix to json string
* Remove unnecessary actions declaration in ChannelInfo
* Refactor creating | editing to saving
* Safe check refs when blurring in ChannelInfo
* pass channelType for displayingHeaderOnly in EditChannelInfo
* Refactor ChannelInfo component to EditChannelInfo
* pass 1to1 props instead of object
* Add required to certain props in EditChannelInfo
* Use Stylesheet for container styles
* Add InvalidPermission method when updating channel
* Clean up onDisplayNameChangeText and safe check scrollToEnd
* Add {deviceWidth, deviceHeight} from redux
* Remove style.navTitle
* Add wrapper methods for delete and leave channel
* remove alertErrorIfInvalidPermissions
* Fix mobile localization strings to use prefix mobile.-
* Add TODO for channel URL
* 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
