Fix backward scrolling when fetching older messages

6d96d32 Fix backward scrolling when fetching older messages.
192a3d4 Don't crash if FIREBASE_INIT is not defined.
491175c Dependencies updated.

DO NOT USE! Fix backward scrolling when fetching older messages

This release is broken: released with a wrong version of the SDK

6d96d32 Fix backward scrolling when fetching older messages.
192a3d4 Don't crash if FIREBASE_INIT is not defined.
491175c Dependencies updated.

Registration by SMS

Full client-side support for registration and password recovery by SMS (has to be enabled at the server to function).

Other changes:

52f8794 Fix for tinode/chat/issues/838.
8df3c34 Moved hiding components to the top level.
2fb6a9b ESC key now closes image, video, or document preview.
5ae58fb Allow message input textarea height to grow with more text, #49.
43798ea Clear event handlers on Unmount, disable text selection on avatars.
172b9eb Removed duplicate styling.

Minor visual tweaks

b4d3e02 a93ede2 Fix color of the date bubble.
4f116ab Replace box-shadow with filter: drop-shadow to remove artifacts.

Bug fixes

87b48cd Fix strutil.secondsToTime().
4be09a0 Calls: create data channel only on the caller's side.
d11f940 Translation fix in Chinese-simplified.

Bug fixes

e1b1ae5 Fix issues with video uploading and display.
7b44913 Fix display of broken videos.
7e3b2fc Tinode-SDK switched from browserify to webpack.
fc6a8fb Minor crash in MessagesView.handleMessageUpdate when topic gets unset.

Audio-only calls, video messages, editing messages, drag-n-drop

Major release:

• Audio-only calls.
• Video messages.
• Editing sent messages.
• Attaching documents, images, and videos by drag-and-drop.

Other changes

• Date dividers with recent relative dates.
• Code separated into chunks.
• Dynamic on-demand loading of translations.
• ce19ebb Fix for tinode/chat#825
• 424a8b6 Remove autoFocus from message input field on mobile, #111
• 9108efc Support for Google Analytics.

The full list of changes: v0.20.4...v0.21.0

Feature: show badge for group topics, similar to channels.

c38e183 6d031f0 Display group topic type badges.

Bug fixes

10b24cc Updated dependencies
ed71c6b Extermalize fix-webm-duration, remove unused webrtc-adapter
297aef7 Consistent avatar handling in new group creation
161f544 7135553 Explicitly set audio recording bit rate
6de41f4 fix for #102.1: Use selector cursor over contacts.
1913ed0 fix for #102.2: soft-wrap long URLs in messages.

Bug fixes

eec52a5 Dependencies updated.
c7b8ce1 Force reconnect if reconnect countdown is negative (computer woke up from sleep).
2156aa0 Allow text wrapping inside <tt>.