This implements right-to-left message automatic detection support in
the compose box as well as the message feed. Full unit tests and
support in the message-editing UI are for future work (as are
potentially more fancy things like supporting things like
right-to-left multi-word names for users/streams/etc.).
Fixes#3123.
This directory contains scripts that are used in building, managing,
testing, and other forms of work in a Zulip development environment.
Note that tools that are also useful in production belong in
scripts/ or should be Django management commands.