some more minor attempts - but the dynamic height is still not working well
if we don't have an outro in the chapter, don't show the outro section
renamed/refctored a bunch of things
GCD is gone and in comes Swift static vars in Struct
one more round of refactoring
ios8 automaticdimension seems to beworking with the dynamic height on the cells. phew
bring back status bar; tweak fonts; code cleanup