kevin

Update podspec to 0.2.0

Pod::Spec.new do |s|
s.name = "PNChart"
s.version = "0.1.8"
s.version = "0.2.0"
s.summary = "A simple and beautiful chart lib with animation used in Piner for iOS"
s.homepage = "https://github.com/kevinzhow/PNChart"
... ...