Merge pull request facebookarchive#1110 from yury/fix-truncation

[ASTextNode] Prompt creation of truncater object when the context object is accessed.

Check array size before accessing section - rare crash for improper d…

…ata source use, de-escalated to messaging nil.

Final AsyncDisplayKit 1.9.4 Tag

Merge pull request facebookarchive#919 from facebook/ASDataController…

…VisibleNodes

[ASDataController] Ensure an empty array is returned if visibleNodes is called before any nodes are complete.

Nuke the curly quotes - omg y must u curly

Final AsyncDisplayKit 1.9.1 Git Tag

Final tag for AsyncDisplayKit 1.9 - Now includes layoutDelegate renam…

…e for ASCellNode

Bump podspec version for AsyncDisplayKit 1.2.3

Merge pull request facebookarchive#538 from facebook/PodspecUpdate122

Update podspec to 1.2.2

Merge pull request facebookarchive#483 from facebook/podfileUpdates

Update .podspec to refer to 1.2.1 release tag.