* commit '5c8558e293989094693f918a63b672301f1aeb55':
v1.21.1
v1.21.1-beta.1
Fix: Navigation to message via quote click didn't always work
mainWindow.close - be ready for null mainWindow
Ensure that Curve.async points to worker after startWorker call
Protect against unhandled promises when calling checkForUpdates
Reenable send when link preview is missing an image
# Conflicts:
# package.json
* textsecure/master: (26 commits)
v1.21.0
v1.21.0-beta.4
Dark Theme: Preserve blue background on app loading screen
Localization updates
Fix width of audio player when window is very narrow
A number of small fixes for Link Previews
Get rid of the white flash when the app starts up (#3083)
v1.21.0-beta.3
Lint fixes
Introduce new language: NB
Fail over to all numbers in retry if errors don't have numbers
Use the proper method for pulling attachments off disk for retry
Fix rendering bug with verified state in updateVerified()
Update electron-builder and electron-updater
Ensure that dialog pops up when permissions denied for voice note
Lint fixes
Large update to localization strings
Link Previews
Ensure that blocked messages are dropped even after sealed sender
Don't linkify quoted message contents
...
# Conflicts:
# .github/PULL_REQUEST_TEMPLATE.md
# _locales/cs/messages.json
# background.html
# config/default.json
# index.html
# js/models/conversations.js
# js/modules/web_api.js
# js/settings_start.js
# js/views/conversation_view.js
# js/views/settings_view.js
# package.json
# protos/SignalService.proto
# stylesheets/_index.scss
# stylesheets/_settings.scss
* Added function to always show the window on tray icon click and reassigned click event
* Refactored the code to force the window on top into its own function
Fix case where db is deleted but password hash still remains which causes user to never register.
Allow password to have symbols and other characters.
Added more tests.
Moved passHash from config into the sqlite db.
We can do this because we assume if sql failed to initialise then the key provided was wrong and thus we can show the user the password page.
Created new table to store the received message hashes. Checking this table when receiving messages to look for duplicates. Should be cleared of expired messages on app start and every hour after
Removed id which was not needed for seen messages. Refactored filter logic into function and found function name error
create unique index for contact prekeys (to allow using REPLACE)
Fixed lint stuff that merge brought back
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Scott Nonnenberg
Beaudan
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Mikunj
Herohtar