Added an xCode project for code reuse

It has a single static library target
- pass touch event with SVProgressHUDDidReceiveTouchEventNotification for UITouch object access

- use lower level (more generic) ui object
No need to use weakSelf in UIView animationBlocks
added will appear and did appear notifications.
added notification sample to demo project.
Update README for will/did appear notifications.
Add possibility to offset the HUD from the center of the screen
added appearance proxies for ring
when keyboard is displayed, move up the gradient overlay center
Merge branch 'master' of https://github.com/samvermette/SVProgressHUD
Only dismiss if HUD is actually visible
Fix sizeWithFont deprecation warning
Fix issue with iOS7 and status bar
Merge pull request #189 from dennisreimann/deprecation-fix

Fix sizeWithFont deprecation warning
Merge pull request #184 from getaaron/master

Add iOS 7 styling.
Merge pull request #179 from mbigatti/master

added appearance proxies for ring
Merge pull request #171 from jessesquires/master

Added will/did appear notifications.
Merge pull request #164 from cbess/master

Pass UITouch event with SVProgressHUDDidReceiveTouchEventNotification
Merge pull request #180 from jun1st/master

when keyboard is displayed, move up the gradient overlay center
Merge pull request #191 from marcferna/master

Fix issue with iOS7 and status bar
Merge pull request #170 from myell0w/master

The strong reference cycle is removed as soon as the animation is finished