Split on double-newlines not single

Otherwise all sorts of tables get horribly broken

templating/build.py

@@ -76,12 +76,10 @@ def main(input_module, file_stream=None, out_dir=None, verbose=False):
         return " "*indent + input
 
     def wrap(input, wrap=80, initial_indent=""):
-        if len(input) == 0:
-            return initial_indent
-        input_lines = input.split('\n')
+        input_lines = input.split('\n\n')
         wrapper = TextWrapper(initial_indent=initial_indent, width=wrap)
         output_lines = [wrapper.fill(line) for line in input_lines]
-        return '\n'.join(output_lines)
+        return '\n\n'.join(output_lines)
 
     # make Jinja aware of the templates and filters
     env = Environment(