bump version

Author: lkzhao

CollectionKit.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "CollectionKit"
-  s.version          = "1.1.0"
+  s.version          = "1.2.0"
   s.summary          = "A modern swift framework for building data-driven reusable collection view components."
 
   s.description      = <<-DESC

Sources/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.1.0</string>
+	<string>1.2.0</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSPrincipalClass</key>