Bump version to 5.0.0 due to multiple breaking changes

Author: flowtoolz

Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>4.2.0</string>
+	<string>5.0.0</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>NSPrincipalClass</key>

SwiftObserver.podspec

@@ -2,7 +2,7 @@
 
     # meta infos
     s.name             = "SwiftObserver"
-    s.version          = "4.2.0"
+    s.version          = "5.0.0"
     s.summary          = "The Elegant Approach to Reactive Swift"
     s.description      = "SwiftObserver is a lightweight framework for reactive Swift. It's a bit unconventional and designed to be readable, easy, flexible, non-intrusive, simple and safe."
     s.homepage         = "http://flowtoolz.com"