[NISubtitleCellObject]
NISubtitleCellObject needs to override its superclass's designated initializer.
Merge pull request #423 from jverkoey/designated_initializer_fix

[NISubtitleCellObject]
Fix the analyzer error in NIAttributedLabel under XCode5.
Merge pull request #426 from jverkoey/xcode5

Fix the analyzer error in NIAttributedLabel under XCode5.
[NIAttributedLabel]
Fix a new NIAttributedLabel analyzer warning in Xcode 4.6.3.
Merge pull request #427 from jverkoey/analyzer_warning

[NIAttributedLabel] Fix analyzer warning with textFrame.
[NIOverviewGraphView]
Guard against zero x/y ranges to prevent runtime assertions on iOS 7.
Merge pull request #429 from jverkoey/graph_view

[NIOverviewGraphView] Guard against zero x/y ranges to prevent runtime assertions on iOS 7.