Initial implementation of guest invitation and status

Added a number of TODO's which will be taken care of later. Performance
needs to be improved.  Also changed some of the content provider calls
to the batch API.
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 4fcd945..8805d4c 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -24,6 +24,7 @@
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.VIBRATE"/>
+    <uses-permission android:name="android.permission.READ_CONTACTS"/>
     <uses-permission android:name="android.permission.READ_CALENDAR" />
     <uses-permission android:name="android.permission.WRITE_CALENDAR" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
@@ -58,7 +59,7 @@
             android:exported="true" />
         
         <activity android:name="EditEvent" android:label="@string/event_edit_title"
-            android:theme="@android:style/Theme.Light"
+            android:theme="@android:style/Theme"
             android:configChanges="orientation|keyboardHidden">
             
             <intent-filter>