- Trim whitespace
- Stop using TabContainer.Children
- Don't clear DrawableChannel when unjoined
- IsClosable -> IsRemovable - EasingTypes -> Easing - Also remove all messages on a channel being un-joined
This also - Renames TextAwesome to SpriteIcon. - Removes the default size of "20" from SpriteIcon (now defaults to the underlying texture size).
Most issues were related to BeginLoopedSequence usage and lack of "this." in front of transform helpers.
Depends on https://github.com/ppy/osu-framework/pull/837
Also add comment about hacky implementation of toggle tab.