With this feature, all buffs that should affect movement will actually affect movement. Like Force Run.

The buff table itself only has "movement" as an effect key. The value is always 0, becaues this is stored in a different table.
That table was added in commit 3d06e16.

We should also be able to get rid of that ugly solution we have now for Burst Run with this change, as well as the correct movement modifier.