Changed the display priority order back in the notebook and made mbconvert match the notebook

IPython/html/static/notebook/js/outputarea.js

@@ -953,8 +953,8 b' define(['
         'application/javascript',
         'text/html',
         'text/markdown',
-        'image/svg+xml',
         'text/latex',
+        'image/svg+xml',
         'image/png',
         'image/jpeg',
         'application/pdf',

IPython/nbconvert/utils/base.py

@@ -13,7 +13,7 b' class NbConvertBase(LoggingConfigurable):'
     Useful for display data priority that might be use by many transformers
     """
 
-    display_data_priority = List(['text/html', 'application/pdf', 'image/svg+xml', 'text/latex', 'image/png', 'image/jpeg', 'text/plain'],
+    display_data_priority = List(['text/html', 'application/pdf', 'text/latex', 'image/svg+xml', 'image/png', 'image/jpeg', 'text/plain'],
             config=True,
               help= """
                     An ordered list of preferred output type, the first