Release v0.5.5

This release fixes a very bad bug where we didn't free the memory
we allocated in ObjectiveC. It brings with it a bunch of stuff that
should make such major screwups less likely in the future.

As I mentioned in the related commit, it's interesting also to see
how we never noticed (or we never encountered data indicating the
occurrence of such event, perhaps).

mkall.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name = "mkall"
-  s.version = "0.5.4"
+  s.version = "0.5.5"
   s.summary = "Measurement Kit iOS libraries"
   s.author = "Simone Basso"
   s.homepage = "https://github.com/measurement-kit"
@@ -11,7 +11,7 @@ Pod::Spec.new do |s|
   }
   s.prepare_command = <<-CMD
     url="https://github.com/measurement-kit/mkall-ios/releases/download/v#{s.version}/mkall.framework.zip"
-    sha256="9acd9d7b16d06ae2c07d790f27260af1b0d650aa64cfc4f8e17bd18ef40b9fb3"
+    sha256="57150db4ced938109862ef9e57307ed25a28ea38171ef66ff0d8850f7736001e"
     ./script/cocoapods/prepare $url $sha256
   CMD
   s.platform = :ios, "9.0"

mkall/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.5.4</string>
+	<string>0.5.5</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 </dict>