Fix bug: TMHMM json output result key should hold a list (solves #32)

Sem-Ver: bugfix

psot/scripts/convert_tmhmm.py

@@ -64,7 +64,7 @@ with open(filename) as f:
         line_dic[key] = int(value)
       elif not key == 'len':
         line_dic[key] = float(value)
-    documents[elements[0]] = {'computations': [{'tool': {'name': 'TMHMM', 'version': '2.0'}, 'results': line_dic}]}
+    documents[elements[0]] = {'computations': [{'tool': {'name': 'TMHMM', 'version': '2.0'}, 'results': [line_dic]}]}
 
 output_filename = args.output
 with open(output_filename, 'w') as o: