Delegation

Enhancements

• Use custom refresh controls (Thanks @szweier & @arielpollack!) #122 & #134
• Added delegate to TLYShyNavBar (Thanks @gfzabarino!) #106
• Performance gain by forwarding unnecessary calls directly to the original delegate or middle-man (Thanks @gfzabarino!) #137
• Don't auto expand navbar if app becomes active and the navbar isn't associated with us (Thanks @greis!) #142
• Allow specific view controller to be set if needed (Thanks @szweier!) #121

And a bunch of other minor fixes and enhancements!