Log Message:
py-emoji: update to 2.8.0

Changes in version 2.8.0:

* Update translations to unicode release-43-1
* Include "derived annotations"-translations from unicode CLDR
* Fix translations for emoji that have multiple forms with/out \uFE0F
* Remove multiple underscore __, ___, ____ and - from translations

Changes in version 2.7.0:

* Extract aliases from cheat sheet and youtube
* Fix extracting translations from emojiterra
* Update EMOJI_DATA with new aliases and translations