prepare release 1.4.3

CHANGELOG.md

+## 1.4.3
+
+* [pr-42](https://github.com/CosmicMind/Motion/pull/42): Fixed unbalanced calls to begin/end appearance transitions.
+  * [issue-29](https://github.com/CosmicMind/Motion/issues/29): Unbalanced calls to begin/end appearance.
+
 ## 1.4.2
 
 * [pr-40](https://github.com/CosmicMind/Motion/pull/40): Fixed delegation issue, where UINavigationController and UITabBarController were not correctly calling their delegate methods.

Motion.podspec

 Pod::Spec.new do |s|
   s.name = 'Motion'
-  s.version = '1.4.2'
+  s.version = '1.4.3'
   s.swift_version = '4.0'
   s.license = 'MIT'
   s.summary = 'A library used to create beautiful animations and transitions for Apple devices.'

Sources/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.4.2</string>
+	<string>1.4.3</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSPrincipalClass</key>