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
Clamp display duration to a maximum of 5 seconds.

If an exceptionally long display string were used, the HUD could
remain onscreen for quite a long time otherwise.
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
Merge pull request #168 from jparise/max-display-duration

Clamp display duration to a maximum of 5 seconds.
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
Merge pull request #1 from samvermette/master

merge
Initial iOS 7 implementation
Removed iOS 7 size increase; added inverted icons
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