add gzip to exec bigbrother for sites and fix passphase print in site creator

src/bigbrother/ministry/ofexec.py

@@ -45,9 +45,11 @@ def block_exec(event, info):
     """Prevent arbitrary code execution in eval/exec and log it."""
     # because libraries have stupid amounts of compile/exec/eval,
     # We have to use a whitelist where it can be tolerated
+    # Generally better than nothing, not a silver bullet
     whitelisted_code = [
                         'netrc.py',
                         'shlex.py',
+                        'gzip.py',
                         '<werkzeug routing>',
                         'werkzeug/test.py',
                         'multiprocessing/popen_fork.py',

src/onionrcommands/sitecreator.py

@@ -40,7 +40,7 @@ If you want to update your site later you must remember the passphrase.''',
 
         passphrase = getpass.getpass(
             'Please enter a site passphrase of at least ' +
-            onionrvalues.PASSWORD_LENGTH + ' characters.')
+            str(onionrvalues.PASSWORD_LENGTH) + ' characters.')
 
         confirm = getpass.getpass('Confirm passphrase:')
         if passphrase != confirm: