Preparations for v5.5.0 alpha.3 (#26)

* Bump podspec version to 5.5.0-alpha.3

* Update changelog.

platform/ios/CHANGELOG.md

@@ -2,12 +2,6 @@
 
 Mapbox welcomes participation and contributions from everyone. Please read [CONTRIBUTING.md](../../CONTRIBUTING.md) to get started.
 
-## master
-
-### Other changes
-
-* Coalesce requests to the client for the same missing image ([#15778](https://github.com/mapbox/mapbox-gl-native/pull/15778))
-
 ## 5.5.0
 
 ### Performance improvements
@@ -27,6 +21,7 @@ Mapbox welcomes participation and contributions from everyone. Please read [CONT
 * Added `MGLMapView.automaticallyAdjustsContentInset` property that indicates if wether the map view should automatically adjust its content insets. ([#15584](https://github.com/mapbox/mapbox-gl-native/pull/15584))
 * Fixed an issue that caused `MGLScaleBar` to have an incorrect size when resizing or rotating. ([#15703](https://github.com/mapbox/mapbox-gl-native/pull/15703))
 * Fixed crash at launch seen on iOS 9 simulator. ([#15771](https://github.com/mapbox/mapbox-gl-native/pull/15771))
+* Coalesce requests to the client for the same missing image ([#15778](https://github.com/mapbox/mapbox-gl-native/pull/15778))
 
 ## 5.4.0 - September 25, 2019
 

platform/ios/Mapbox-iOS-SDK-snapshot-dynamic.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |m|
 
-  version = '5.5.0-alpha.2'
+  version = '5.5.0-alpha.3'
 
   m.name    = 'Mapbox-iOS-SDK-snapshot-dynamic'
   m.version = "#{version}-snapshot"

platform/ios/Mapbox-iOS-SDK-stripped.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |m|
 
-  version = '5.5.0-alpha.2'
+  version = '5.5.0-alpha.3'
 
   m.name    = 'Mapbox-iOS-SDK-stripped'
   m.version = "#{version}-stripped"

platform/ios/Mapbox-iOS-SDK.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |m|
 
-  version = '5.5.0-alpha.2'
+  version = '5.5.0-alpha.3'
 
   m.name    = 'Mapbox-iOS-SDK'
   m.version = version