* Add support for following hashtags. Addresses #2637
* Update rxjava to coroutines
* Update new tag api to use suspend functions
* Update hashtag unfollow icon
* Set correct tint on hashtag follow/unfollow icons
* Translate hashtag follow/unfollow error messages
* Toast => Snackbar
* Remove unnecessary view lookup
* Migrate LinkHelper to kotlin
* Support tags field on statuses
* Use embedded tags list in status instead of text scraping to embed tag click handler.
Fixes#2283
* Make mentions and tags lists nonnullable
* Make LinkHelper.openLink a Context extension method
* Use builtin extension for uri conversion
* More cleanup in LinkHelper
* Add tests for LinkHelper.getDomain
* Unbreak tags in places that don't have a tag list (e.g. profiles)
* Fixup javadoc