Config file parser pukes on empty lines containing tabs

[PhirePhly]

It seems like if you accidentally have lines with only tabs in them, they cause the config parse to puke on unknown entities.

[PhirePhly]

configline_is_comment() in config.c seems like it should properly handle "\t\t\n", which would indicate that this is more of an issue of one of the tokenizers somewhere is missing if (configline_is_comment()) continue;