Rename addButton variable for TimbreTab
Modify Knob UI to be a little simpler

Rather than go from the center, we go from the last point the user was
at. We also remove the "same angle" case because it seems to just cause
issues. End result of all this is that Knob UIs are really sucky to
mimic on a 2d surface. Starting to prefer Sliders for that functionality
Add a minTextSize option to Labels
Propagate layoutChanged events down Tab elements

This whole layoutChanged thing is kinda a mess, to be honest. It's
really only guaranteed to be useful for the topmost level elements. this
is a serious FIXME as the values aren't reliable. noted on pivotal
Comment out Share Synth button

This functionality is coming RealSoonLike (tm)
Properly set the tabManager's width

We were setting it to the width of the entire screen, but we need to
just set it to the entire controller's width
Give tabPanels a little more vertical space
Add setText method to Labels

I think this got to get commited :/. bye bye pretty granular commits
Don't override setTextSize in RectButton

just default to Button's method, which is better since we want the
button to calculate its textSize if need be
Recalculate textSize of children when calculating table layout
Set focused text size when setting RectButton's textSize

We forgot about this guy.
Make button verbiage a little more descriptive

We've got real estate now, so we can afford to say a little more
Update tutorial for new version
Add Help menu item for showing tutorial
Hook up the visuals toggle button to actually work
Reenable the Visualizer to work with our new Drawables

This still isn't perfect but it's a pretty minor feature that's not
crucial. it's just for funsies.
Remove non-implemented Settings item
Add button to send a feedback email to me
Add button to exit Settings menu
Add margin on Settings buttons