Added basic VoiceOver support to DTAttributedTextContentView.
Modified demo text view controller to hide non-visible content views to avoid conflicts with VoiceOver.
Invalidate accessibility elements when explicitly setting the layout frame.
cleaned up font matching

- with the override table generally filled there are now two modes of matching:
   1. by name (from the descriptor or override table)
   2. by doing a matching descriptor search
- when creating a descriptor from a font with slant matrix this also gets the italic trait
- much renaming and made clearer what is happening
Removed idiotic test code that - according to git blame - I am to blame for.
fixes #404
Merge branch '1.4.3'
Updated podspec for 1.4.3
Merge pull request #414 from aerych/develop

Fixes an issue where URLs with https would be treated as an external URL
Added newPathWithGlyphs method for glyph runs and lines.

With this you can get a CGPath that has all the glyphs of the text for fancy custom drawing.

Closes #388
Cleanup
Added warning to content view layoutSubviews if no tiled layer is used, but the view is too large.

issue #409
DTAttributedTextView now automatically uses DTTiledLayerWithoutFade as layer for its content view.
#409
Merge branch 'od/issue_409' into develop
Fix truncation line memory leak
Merge pull request #417 from leehericks/lh_fixMemoryLeak

Fix truncation line memory leak
Added unit test for #418
Added potential crash in DTHTMLWriter, issue #419
Allow LI to update local list style inside list, #418
corrected unit test
Merge branch 'od/issue_418' into develop