Changing utils.all_from_module to really only load variables actually

defined in the module in question (so will no longer include imports
from other modules). Added utils.callables_from_module to handle the
common case of only wanting callable functions from a module (used by
lock funcs, inlinefuncs etc).

evennia/locks/lockhandler.py

@@ -140,12 +140,7 @@ def _cache_lockfuncs():
     global _LOCKFUNCS
     _LOCKFUNCS = {}
     for modulepath in settings.LOCK_FUNC_MODULES:
-        mod = utils.mod_import(modulepath)
-        if mod:
-            for tup in (tup for tup in inspect.getmembers(mod) if callable(tup[1])):
-                _LOCKFUNCS[tup[0]] = tup[1]
-        else:
-            logger.log_err("Couldn't load %s from PERMISSION_FUNC_MODULES." % modulepath)
+        _LOCKFUNCS.update(utils.callables_from_module(modulepath))
 
 #
 # pre-compiled regular expressions