added some basic unittests

changed warning/success message system to a new style
unified design of "hints" in form interfaces
fixed small bugs in "network" and "partition" plugin interfaces
"partition" and "disks" plugins: show blockdevice size during device selection
german translation for "disks" plugin added

pythonrewrite/plugins/volume_mount/unittests.py

@@ -0,0 +1,10 @@
+import WebInterfaceTestClass
+
+class unittests(WebInterfaceTestClass.WebInterfaceTestClass):
+
+	def test_read_form(self):
+		url = self.URL + "plugins/volume_mount?weblang=en&device=%2Fdev%2Floop1"
+		self.register_auth(url)
+		self.cmd.go(url)
+		self.cmd.find('ctivate volume')
+

pythonrewrite/plugins/volume_mount/volume_mount.cs

@@ -1,5 +1,7 @@
 <h2><?cs var:html_escape(Lang.Plugins.volume_mount.Title.Mount) ?></h2>
 
+<?cs call:handle_messages() ?>
+
 <p><?cs call:print_form_header("mount", "plugins/volume_mount") ?>
 	<input type="hidden" name="device" value="<?cs var:html_escape(Data.CurrentDisk.device) ?>" />
 	<?cs if:Data.CurrentDisk.encryption ?>

pythonrewrite/plugins/volume_mount/volume_umount.cs

@@ -1,5 +1,7 @@
 <h2><?cs var:html_escape(Lang.Plugins.volume_mount.Title.Umount) ?></h2>
 
+<?cs call:handle_messages() ?>
+
 <?cs call:print_form_header("umount", "plugins/volume_mount") ?>
 	<p><input type="hidden" name="device" value="<?cs var:html_escape(Data.CurrentDisk.device) ?>" />
 	   <input type="hidden" name="action" value="umount" />