Creates empty app for CoreImage face detection demo
App now uses AVFoundation to take a photo when it finds a face
Adds smile and blink detection

Very simple, but demonstrates the power of CI.
Create sample project to demo row height estimation
Completed demo project to show the difference between estimation and not

Initial load time is a lot quicker. Scrolling is maybe slightly slower,
but that's due to the way we're slowing down the load.
Couple of bug-fixes and correct license headers
Adds writeup and images for face detectors.
Add code to calculate table load time
Updated load time calc code so it is only calculated on first view.
License headers
Added the images for the writeup
Completes writeup of tableview height estimation
Merge branch 'days/18-coreimage-features'
Corrects the orientation of the generated QR code
Merge branch 'days/15-core-image-filters'
Merge branch 'days/19-uitableview-rowheight-estimation'
Merge pull request #1 from ShinobiControls/master

Updates