Merge pull request #65 from macoslib/master

Merge changes
Merge branch 'macoslib-master'
Merge pull request #66 from macoslib/master

Merge changes
Merge branch 'macoslib-master'
Minor changes

- Removed reference to Timer in AuthorizationShellExample comments.
- Removed reference to SelfTest in CertTools.
- NSUserNotificationCenter: Changed event name to more descriptive
ShouldPresentNotificationInForeground.
Added NSSound and NSSoundExample
Bug fixes/additions

- Added a StopOnDestruct property. Normal OS X behavior is that a sound
will keep playing even after the Xojo references have gone away.
- Fixed bugs in NSSoundExample window.
Added AVAsset and AVMetadataItem

- Modified NSSoundExample with new classes.
- Added CMTime and related constants and functions to Cocoa module.
Added Artwork to NSSoundExample
Started adding AVAssetTrack

- Fixed NSSoundExample to handle .m4a files.
Made additions to classes

- Added properties/methods to AVAsset, AVAssetTrack, AVMetadataItem.
- Replace For Each in Cocoa.NSObjectFromNSPtr since order matters.
Added AVMetatadataItem.PictureValue

- Yeah, a convenience method, but one that will be needed a lot and
consistent with other, native properties.
- Renamed NSSoundExample window and menu item to reflect the additional
classes it illustrates.
Merge pull request #67 from macoslib/master

Merge changes
Merge branch 'macoslib-master'

* macoslib-master:
  Add NSObjectFromVariant converts variant.TypeLong to new NSNumber.
  Reversed an accidentally reversed commit.
  Updated version
  It's NSObject.hasOwnership, not NSString.hasOwnership (This is no functional change, so no need to increment the version number)
  Removed unused variable
  Added a property for NSSearch field's FocusRing
Added classes and various changes

- Removed reference to Timer in AuthorizationShellExample comments.
- Removed reference to SelfTest in CertTools.
- NSUserNotificationCenter: Changed event name to more descriptive
ShouldPresentNotificationInForeground.
- Added Cocoa.NSSound class.
- Added NSSoundExample window.
- Added Cocoa.AVAsset.
- Added Cocoa.AVAssetTrack.
- Added Cocoa.AVMetadataItem.
- Added new classes to Cocoa.NSObjectFromNSPtr.
- Replaced For Each in Cocoa.NSObjectFromNSPtr since order matters.
- Version 174.
Merge pull request #145 from ktekinay/master

Added classes and various changes