5.0.6: Fix crash (issue #112)

• Prevent crash when user simultaneously taps Cancel and Enter Manually buttons
  (#112)

5.0.5: improve Chinese translations; prepare for Xcode 6.3

• Update Chinese translations for "CVV".
  (paypal/PayPal-iOS-SDK#278)
• Update project and sample apps for Xcode 6.3, but
  build SDK with Xcode 6.2 this one last time to prevent
  compatibility issues for clients still using Xcode 6.2.

5.0.4: two minor fixes/improvements

• Check existing video permissions before presenting camera view.
  (#99)
• Restrict expiry year manual input to 2 digits in all cases.
  (#104)

5.0.3: two minor bug fixes

• On scan cancelation, eliminate a visual stutter.
  (#97)
• On scan completion, reset camera focus range to nonrestricted.
  (card-io/card.io-iOS-source#17)

5.0.2: re-enable expiry-scanning for 32-bit devices

• Re-enable expiry-scanning for 32-bit devices (e.g., iPhone 4S).

5.0.1: shrink expiry-scanning code a bit; disable expiry-scanning for 32-bit

• Simplify expiry-scanning code to improve accuracy and also decrease library size a bit.
• For now, disable expiry-scanning for 32-bit devices (e.g., iPhone 4S).
  • This is because of an apparent compiler bug for which we haven't yet found a workaround.

5.0.0: scan expiry date

• Add automatic expiry-scanning.

  You can disable this feature via the new scanExpiry property of either CardIOView or CardIOPaymentViewController.

  Note: Expiry scans will not infrequently fail to obtain the correct expiry date.
  We are continuing to work to improve expiry-scanning accuracy.

• Remove various deprecated properties.

4.0.2: iOS 8 vs. right-to-left languages; Expiry and CVV on one line

• Fix an iOS 8 display issue involving right-to-left languages. (#90)
• In the manual-input screen combine Expiry and CVV into a single row, for more languages than before.

4.0.1: prevent a potential rare crash

• Fix a potential rare crash. (see paypal/PayPal-iOS-SDK#220 for a similar case)

4.0.0: build from the new open-source edition of card.io

• Build from the new open-source edition of card.io: https://github.com/card-io/card.io-iOS-source
• New class: CardIOUtilities
  • libraryVersion (formerly a method of CardIOPaymentViewController)
  • canReadCardWithCamera (formerly a method of CardIOPaymentViewController)
  • preload (formerly a method of CardIOView and of CardIOPaymentViewController)
  • blurredScreenImageView (new method)
• New property on CardIOCreditCardInfo:
  • cardImage
• New properties on CardIOView and CardIOPaymentViewController:
  • scanInstructions
  • hideCardIOLogo
  • scanOverlayView
  • detectionMode
• New notification:
  • CardIOScanningOrientationDidChangeNotification