Update pod spec to version 0.3.0

McPicker.podspec

@@ -5,11 +5,13 @@
 
 Pod::Spec.new do |s|
   s.name             = 'McPicker'
-  s.version          = '0.2.0'
+  s.version          = '0.3.0'
   s.summary          = 'McPicker is a UIPickerView drop-in solution with animations that is rotation ready.'
 
   s.description      = <<-DESC
-McPicker is a UIPickerView replacement with animations and rotation ready. The more string arrays you pass the more picker components you'll get. You can set custom label or use the default.
+McPicker is a UIPickerView drop-in solution with animations that is rotation ready. The more string arrays you pass, the more picker components you'll get. You can set custom label or use the defaults. McPicker can be presented as a Popover on iPhone or iPad using showAsPopover or use the default slide up and down style, show.
+
+showAsPopover can be used to display from a UIView or UIBarButtonItem. showAsPopover will always be presented as a Popover, even when used on an iPhone.
 DESC
 
   s.homepage         = 'https://github.com/kmcgill88/McPicker-iOS'