Fix changelog generated from different branches

NXMOB-332: fix libRNI18n compilation
NXMOB-352: take into account CleanBeforeCheckout in the Pipeline checkout step for iOS
NXMOB-332: fix npm shrinkwrap
NXMOB-332: upgrade to React Native 0.47.2
NXMOB-372: sign in within the app with Safari View Controller and Chrome Custom Tabs
NXMOB-372: reorganize Java dependencies
NXMOB-349: allow to validate a task
NXMOB-365: simple view of an assigned task
NXMOB-276: extract a DocumentPreview component
NXMOB-276: allow to list current user tasks

| * 42b229e - (tag: android-1.9.0-47) Release Android 1.9.0-47 (Mon Sep 4 16:31:13 2017 +0000) <Jenkins Nuxeo>
|/  
* c2d395e - (task-NXMOB-332-update-react-native-0.47.2) NXMOB-332: fix libRNI18n compilation (Mon Sep 4 18:19:32 2017 +0200) <Antoine Taillefer>
* be9a6bc - NXMOB-352: take into account CleanBeforeCheckout in the Pipeline checkout step for iOS (Mon Sep 4 18:06:56 2017 +0200) <Antoine Taillefer>
* f9f98af - NXMOB-332: fix npm shrinkwrap (Mon Sep 4 18:05:55 2017 +0200) <Antoine Taillefer>
* c4ab8f1 - NXMOB-332: upgrade to React Native 0.47.2 (Mon Sep 4 13:12:07 2017 +0200) <Antoine Taillefer>
* 452f628 - NXMOB-372: sign in within the app with Safari View Controller and Chrome Custom Tabs (Wed Aug 30 13:29:30 2017 +0200) <Antoine Taillefer>
* ca3f0cb - NXMOB-372: reorganize Java dependencies (Wed Aug 30 13:29:30 2017 +0200) <Antoine Taillefer>
| * 3365366 - (origin/task-NXMOB-322-workflow-tasks, task-NXMOB-322-workflow-tasks) NXMOB-349: allow to validate a task (Tue Aug 22 14:50:57 2017 +0200) <Thomas Roger>
| * 202bdc5 - NXMOB-365: simple view of an assigned task (Tue Aug 22 14:50:44 2017 +0200) <Thomas Roger>
| * 5c23a45 - NXMOB-276: extract a DocumentPreview component (Tue Aug 22 14:50:11 2017 +0200) <Thomas Roger>
| * 9e224cf - NXMOB-276: allow to list current user tasks (Tue Aug 22 14:50:08 2017 +0200) <Thomas Roger>
|/  
| * 4259a4c - (tag: android-1.9.0-46) Release Android 1.9.0-46 (Tue Aug 22 12:39:50 2017 +0000) <Jenkins Nuxeo>
| | * 9ee50b0 - (tag: ios-1.12.0-1) Release iOS 1.12.0-1 (Tue Aug 22 11:57:10 2017 +0200) <Jenkins Nuxeo>
| |/  
| * 196a8ab - NXMOB-349: allow to validate a task (Tue Aug 22 11:45:28 2017 +0200) <Thomas Roger>
| * be38089 - NXMOB-365: simple view of an assigned task (Tue Aug 22 11:45:28 2017 +0200) <Thomas Roger>
| * 560c31b - NXMOB-276: extract a DocumentPreview component (Tue Aug 22 11:45:27 2017 +0200) <Thomas Roger>
| * dc098fb - NXMOB-276: allow to list current user tasks (Tue Aug 22 11:45:27 2017 +0200) <Thomas Roger>
|/  
* bc54ae9 - NXMOB-375: set Android versionCode to 1 (Tue Aug 22 11:41:10 2017 +0200) <Thomas Roger>