* PLT-1626 Stopped breaking up hyphenated hashtags when highlighting search terms
* Made hashtag search highlighting case independent
* PLT-1424 Improved search highlighting when searching for CJK characters
* PLT-1473 Added search term highlighting to single-line code blocks
* PLT-1473 Added search term highlighting to code blocks that don't use syntax highlighting
* PLT-1483 Added proper highlighting of at mentions
* Fixing formatting
* PLT-2321 Move the toggle icon next to the link being previewed
only applicable to one-line messages started with link
* remove useless "Youtube" header when no title is available
* allow breaking long links instead of toggle
* simplify "/" to "/<wbr />" replacing
fix empty post without additional content body
* discard buggy "simplification"
* Updated twemoji to properly recognize Unicode 8.0 emojis
* Updated unicode emoji parser to only render emojis we support as images
* Corrected filename for South African flag emoji
* Added Mattermost emoticons!
* Added additional emoticons to test files
