Auto layout and iBeacon section, and extra repo

Added new auto layout section and listed:

- Cartography by @robb

and iBeacon listing:

- iBeacon by @gemtot

then added:

- iOS-Swift-Demos by @Lax
- CLKit by @kylef
- GRequest by @lingoer
- BrightFutures by @Thomvis
- Learn Swift by @nettlep