Update podspec to 2.0.2

Author: MarkQSchultz

PSOperations.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
 	s.name         	= "PSOperations"
-	s.version      	= "2.0.1"
+	s.version      	= "2.0.2"
 	s.summary      	= "This is an adaptation of the sample code provided in the Advanced NSOperations session of WWDC 2015"
 	s.description  	= <<-DESC
 	This is an adaptation of the sample code provided in the [Advanced NSOperations session of WWDC 2015](https://developer.apple.com/videos/wwdc/2015/?id=226).  This code has been updated to work with the latest Swift changes as of Xcode 7.  For usage examples, see WWDC 2015 Advanced NSOperations and/or look at the included unit tests.