Upgrade OTR packages to 4.0.x
Originally created by @01010101 on #9513 (Redmine)
Please upgrade OTR version: stable 4.0.x
Some very useful features:
- Support v3 of the OTR protocol
- The plugin now supports multiple OTR conversations with the same
buddy who is logged in at multiple locations.
Feature Branch: feature/9513-OTR-v3