Fix wrong default value for fmt argument in WmsTileLayer (#950)

The default value of the fmt argument in WmsTileLayer was changed by accident to image/jpg instead of image/jpeg.

Author: Conengmo

CHANGES.txt

@@ -5,6 +5,10 @@
 - More options (tms, opacity, kwargs) in TileLayer (mpickering #948)
 - Add MousePosition plugin (btozer #916)
 
+Bug Fixes
+
+- Fix wrong default value for fmt argument of WmsTileLayer (conengmo #950)
+
 
 0.6.0
 ~~~~~

folium/raster_layers.py

@@ -176,7 +176,7 @@ class WmsTileLayer(Layer):
         """)  # noqa
 
     def __init__(self, url, name=None, layers='', styles='',
-                 fmt='image/jpg', transparent=False, version='1.1.1',
+                 fmt='image/jpeg', transparent=False, version='1.1.1',
                  attr='', overlay=True, control=True, show=True, **kwargs):
         super(WmsTileLayer, self).__init__(overlay=overlay, control=control,
                                            name=name, show=show)