Snappier with bigger projects

We've continued making WannaTrack faster for teams with lots of tickets, sprints, and projects. Since August, these have all been reworked to do their work in a few steps instead of one step per item:

• Reordering tickets, sprints, and statuses.
• Completing a sprint and moving its unfinished tickets.
• The Epics page, which now loads all of its epics' tickets at once.
• Search, across every project you have access to.
• The Backlog and Sprints pages, for projects with several open sprints.

As before, nothing looks different. It just responds faster.