Small tweak.

Signed-off-by: crynobone <crynobone@gmail.com>
Update changelog.

Signed-off-by: crynobone <crynobone@gmail.com>
Add troubleshooting doc how to solve SessionHandler::read() error based on orchestral/platform#35.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1'