Make nbconvert a little less chatty.

User don't really care what template is used by default.
and no need to say where the files might be written if they won't be.

IPython/nbconvert/exporters/templateexporter.py

@@ -190,7 +190,7 b' class TemplateExporter(Exporter):'
             except Exception as e:
                 self.log.warn("Unexpected exception loading template: %s", try_name, exc_info=True)
             else:
-                self.log.info("Loaded template %s", try_name)
+                self.log.debug("Loaded template %s", try_name)
                 break
 
     def from_notebook_node(self, nb, resources=None, **kw):

IPython/nbconvert/nbconvertapp.py

@@ -310,7 +310,6 b' class NbConvertApp(BaseIPythonApplication):'
             resources['profile_dir'] = self.profile_dir.location
             resources['unique_key'] = notebook_name
             resources['output_files_dir'] = '%s_files' % notebook_name
-            self.log.info("Support files will be in %s", os.path.join(resources['output_files_dir'], ''))
 
             # Try to export
             try:

IPython/nbconvert/writers/files.py

@@ -76,7 +76,11 b' class FilesWriter(WriterBase):'
             # Write all of the extracted resources to the destination directory.
             # NOTE: WE WRITE EVERYTHING AS-IF IT'S BINARY.  THE EXTRACT FIG
             # PREPROCESSOR SHOULD HANDLE UNIX/WINDOWS LINE ENDINGS...
-            for filename, data in resources.get('outputs', {}).items():
+
+            items = resources.get('outputs', {}).items()
+            if items:
+                self.log.info("Support files will be in %s", os.path.join(resources['output_files_dir'], ''))
+            for filename, data in items:
 
                 # Determine where to write the file to
                 dest = os.path.join(self.build_directory, filename)