Dynamic layout of Y-Axis labels
Remove dependency on NSArray+Functional as similar functionality was already included in objc-utils.
Merge branch 'dynamic-y-axis-width' of git://github.com/ludwigschubert/ios-linechart into ludwigschubert-dynamic-y-axis-width

Conflicts:
	ios-linechart/LineChartView.h
	ios-linechart/LineChartView.m