Add check to display database upgrade screen to more activities

Through shortcuts, widgets, etc. users can start the app using another
activity than Accounts. We still want to display the database upgrade
screen in such cases.

src/com/fsck/k9/activity/FolderList.java

@@ -287,6 +287,12 @@ public class FolderList extends K9ListActivity implements OnNavigationListener {
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
+        if (UpgradeDatabases.actionUpgradeDatabases(this, getIntent())) {
+            finish();
+            return;
+        }
+
         mActionBarProgressView = getLayoutInflater().inflate(R.layout.actionbar_indeterminate_progress_actionview, null);
         mActionBar = getSupportActionBar();
         initializeActionBar();

src/com/fsck/k9/activity/MessageCompose.java

@@ -480,6 +480,12 @@ public class MessageCompose extends K9Activity implements OnClickListener {
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
+        if (UpgradeDatabases.actionUpgradeDatabases(this, getIntent())) {
+            finish();
+            return;
+        }
+
         requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
         setContentView(R.layout.message_compose);
 

src/com/fsck/k9/activity/MessageList.java

@@ -125,6 +125,12 @@ public class MessageList extends K9FragmentActivity implements MessageListFragme
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
+        if (UpgradeDatabases.actionUpgradeDatabases(this, getIntent())) {
+            finish();
+            return;
+        }
+
         setContentView(R.layout.message_list);
 
         mActionBar = getSupportActionBar();