Add links to download one or all attachments

Also removed the contextual menu over file attachments and changed the
label color when moving over the file attachments.

UI/MailerUI/UIxMailEditor.m

@@ -163,6 +163,11 @@ static NSArray *infoKeys = nil;
   return item;
 }
 
+- (NSString *) uid
+{
+  return [[self clientObject] nameInContainer];
+}
+
 - (NSArray *) priorityClasses
 {
   static NSArray *priorities = nil;
@@ -382,16 +387,16 @@ static NSArray *infoKeys = nil;
   ASSIGN (attachment, newAttachment);
 }
 
-- (NSFormatter *) sizeFormatter
-{
-  return [UIxMailSizeFormatter sharedMailSizeFormatter];
-}
-
 - (NSDictionary *) attachment
 {
   return attachment;
 }
 
+- (NSFormatter *) sizeFormatter
+{
+  return [UIxMailSizeFormatter sharedMailSizeFormatter];
+}
+
 /* from addresses */
 
 - (NSArray *) fromEMails
@@ -672,11 +677,6 @@ static NSArray *infoKeys = nil;
   return [[self attachmentAttrs] count] > 0 ? YES : NO;
 }
 
-- (NSString *) uid
-{
-  return [[self clientObject] nameInContainer];
-}
-
 - (id) defaultAction
 {
   SOGoDraftObject *co;