Add Photo.to_html_img.

igc2kmz/photo.py

@@ -66,3 +66,7 @@ class Photo(object):
             self.description = exif.parse_usercomment(user_comment)
         else:
             self.description = None
+
+    def to_html_img(self):
+        return '<img alt="%s" src="%s" height="%d" width="%d"/>' % \
+               (self.name, self.url, self.jpeg.height, self.jpeg.height)