Recent Activity Bug Fixes and Improvements

We have recently fixed a few bugs and made a few improvements to the display of recent activity:
1. The recent activity list was being ordered incorrectly. They are now correctly shown with the newest activity on the top of each team's list.
2. We improved the activity description for sending and replying to messages. Now you can see who sent a message to you and who you replied to. This has also been updated for the dashboard RSS feed.
3. We fixed a bug where activity from the last 24 hours were not being highlighted. This bug was introduced with the last release.
4. Your time zone is now being correctly taken into account when displaying whether an activity occurred "Today" or "Yesterday".