Allow BITFeedbackActivity title and image to be customized

Classes/BITFeedbackManager.h

@@ -92,4 +92,30 @@ typedef enum {
  */
 - (BITFeedbackComposeViewController *)feedbackComposeViewController;
 
+
+///-----------------------------------------------------------------------------
+/// @name BITFeedbackActivity settings
+///-----------------------------------------------------------------------------
+
+
+/**
+ Define the image shown when using `BITFeedbackActivity`
+ 
+ If not set a default icon is being used.
+ 
+ @see activityTitle
+ */
+@property (nonatomic, retain) UIImage *activityImage;
+
+
+/**
+ Define the title shown when using `BITFeedbackActivity`
+ 
+ If not set, a default string is shown by using the apps name
+ and adding the localized string "Feedback" to it.
+ 
+ @see activityImage
+ */
+@property (nonatomic, retain) NSString *activityTitle;
+
 @end