* Russian language updated
Please note that I made the translation with [Stringlate](https://github.com/LonamiWebs/Stringlate) so there might be some issues with formatting. Please let me know if any.
* Fixed quotes in <a href> tags
* do not add media urls to status text
* add scrolling to content
* add arrow icon and animation to replying-to toggle
* remove unnecessary compose_button_colors.xml
* improve toot button
* improve bottom bar, add bottom sheet for compose options, dedicated cw button
* fix crash on Android < API 21
* move media picking from dialog to bottom sheet
* add small style tootbutton
* fix colors/button background for light theme
* add icons to media chose bottom sheet
* improve hide media button, delete unused styles
* fix crash on dev build when taking photo
* consolidate drawables
* consolidate strings and ids, add tooltips to buttons
* allow media only toots
* change error message to show max size of upload correctly
* fix button color
* add emoji
* code cleanup
* Merge branch 'master' into compose_activity_refactoring
# Conflicts:
# app/src/main/java/com/keylesspalace/tusky/ComposeActivity.java
* fix hidden snackbar
* improve hint text color
* add SendTootService
* fix timeline refreshing
* toot saving and error handling for sendtootservice
* restructure some code
* convert EditTextTyped to Kotlin
* fixed pick media button disabled color
* force sensitive media when content warning is shown
* add db cache for emojis & fix tests
* reorder buttons to match mastodon web
* add possibility to cancel sending of toot
* correctly delete sent toots
* refresh SavedTootActivity after toot was sent
* remove unused resources
* correct params for toot saving in SendTootService
* consolidate strings
* bugfix
* remove unused resources
* fix notifications on old android for SendTootService
* fix crash
* German translation: der Toot becomes der Beitrag
* German translation: Toot! becomes Teilen!
* German translation: berichtet becomes gemeldet
* German translation: NSFW-Inhalte become Heikle Inhalte
* German translation: Followers become Folgende
* German translation: Followanfrage becomes Folgeanfrage
* Initial implementation of regex feed filtering
Mimics Mastodon web's functionality, but in a simpler form; a single
regular expression is shared across the home, local and federated feeds.
Strings are currently only provided in English and will need to be
translated.
* Fix buggy behaviour on filter regex update
* Validate regex filter input
Fixes buggy behaviour on inputting a regular expression feed filter by
testing the expression continuously as the user types, displaying an
error and disabling the 'OK' button of the dialog at any time it's not a
valid regular expression. Disables spelling suggestions in the input to
make the experience less frustrating and error prone.
Also fixes some generally buggy behaviour upon preference change,
specifically in cases where no Matcher was set prior to a new pattern
being set, which would cause the app to crash.
* Apply regex filter to spoiler text
* Get rid of empty catch block in regex filter code
* Make regex filter error string translatable
* Use the entire content warning text + button as the hitbox for the "Show more/less" toggle
* Move the content warning toggle button to its own line and give it a little more space
* Move content warning elements into parent layout, remove now-superfluous FlowLayout
* Use marginTop/Bottom instead of Vertical, which is only in sdk 26+
* Update minimum width for content warning toggle button
aka-rin