Release 2.21.295

Merge pull request #309 from wireapp/bug/accent-color-crash

Fixed the possibility of getting yellow accent on registration

Revert "Bump major version to 2.23"

This reverts commit 10e3f84.

Updated SE to 84.1256/84.1.308

Merge pull request #247 from wireapp/bug/timestamp_npe

[AN-4600] Adds fix for NPE when setting message time stamp

customAvsVersion 2.9.3

Merge pull request #188 from wireapp/feature/cursor_change_tracking

[AN-4534] Adds tracking for send button and  emoji keyboard changes

Merge pull request #188 from wireapp/feature/cursor_change_tracking

[AN-4534] Adds tracking for send button and  emoji keyboard changes

SE 78.0.294 - Notification fix