Fixed #59 #60

Fixed #59 #60: navigationItem.titleView is not loaded on iOS 8.

Bug fixes

• Merged #46
• Fixed #51 #38
• Return "popupController" of "parentViewController" if the view controller is embedded.

Expose Container View and Better Documentation

• Expose container view so that popup can be more customizable.
• Better documentation in public header files.
• Hide internal use interfaces and properties to reduce confusions.

Support Carthage

• Support Carthage
• Fixed orientation issue when using auto-width with bottom sheet style.

Support IBInspectable

Support IBInspectable for contentSizeInPopup and landscapeContentSizeInPopup, now you can set the content size in interface builder or storyboard.

New Popup Style: Bottom Sheet

• Support new popup style: bottom sheet.
• Background view customizable.
• Now you can change contentSizeInPopup after popup is shown.
• Support segue in storyboard.

Bug Fixes

• Observer for navigation item update.
• Fixed status bar hidden and style issue.
• Support navigation bar hidden.
• Forward view controller appearance properly.

Support Storyboard

• Support storyboard + auto layout.
• Disable drag to dismiss.
• Better auto-reposition when keyboard is showing up.
• Bug fixes.

Code Structure Refinement and Bugs Fixes

• Move container view controller transition into UIViewControllerAnimatedTransitioning.
• Support statusBarHidden, statusBarUpdateAnimation and statusBarStyle.
• Bug fixes for auto-resposition when keyboard is showing up.
• Bug fixes for iOS 9.

First Stable Version

Tested in two projects, stable enough.