Misc fixes and sync on connectivity works.

* Export connectivity monitor.
* Sync works properly when data was available, but we need to find why
there is more messages than we need when we get them.
* add missing files

res/menu/main.xml

@@ -0,0 +1,13 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context="fr.unix_experience.owncloud_sms.MainActivity" >
+
+    <item
+        android:id="@+id/action_settings"
+        android:orderInCategory="100"
+        android:title="@string/action_settings"
+        app:showAsAction="never"/>
+    <item android:id="@+id/sync_now" android:title="@string/sync_now"></item>
+
+</menu>