Merge pull request #1 from macoslib/master

Kems changes
Merge remote-tracking branch 'root/master'
Merge remote-tracking branch 'root/master'
Fixes the issue that the code could not be compiled due to Toolbar1 having a protected constructor
Adds Core Text support with Example
Merge remote-tracking branch 'refs/remotes/github-macoslib/master'
Merge pull request #24 from tempelmann/master

Core Text support added. With nice example
Adds CFAttributedString and CFMutableAttributedString and makes CoreText methods depend on these CF types instead of NS types.
Merge pull request #25 from tempelmann/master

Adds CFAttributedString and CFMutableAttributedString and makes CoreText methods depend on these CF types instead of NS types.
Merge pull request #14 from macoslib/master

Merge from master
Fixes handling of empty lines in CTLine example
Merge pull request #26 from tempelmann/master

Fixes handling of empty lines in CTLine example
Core Text: Fixes small issues and adds setting of Font
Merge pull request #27 from tempelmann/master

Core Text: Fixes small issues and adds setting of Font
Refactor NSMenuItem.CreateSeparatorItem.
Add method NSSearchField.AddMenuSeparator; add separator to NSSearchField example.
Merge pull request #28 from declaresub/master

Add NSSearchField.AddMenuSeparator.
Remove NSFont.ConvertFontToHaveTrait; this method properly belongs in NSFontManager, which does have such a method.
Add TextAreaExtension.Bold, Italic.  These methods implement setting font traits on a text range.
Merge pull request #29 from declaresub/master

Add TextAreaExtension Bold, Italic methods for formatting a range of text.