prepare for Motion 1.2.1

Motion.podspec

 Pod::Spec.new do |s|
   s.name = 'Motion'
-  s.version = '1.2.0'
+  s.version = '1.2.1'
   s.license = 'MIT'
   s.summary = 'A library used to create beautiful animations and transitions for Apple devices.'
   s.homepage = 'http://cosmicmind.com'

Sources/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.2.0</string>
+	<string>1.2.1</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSPrincipalClass</key>