Fixed mapping of color in configuration.

cmd/mtwebmapper/config.go

@@ -24,7 +24,7 @@ type config struct {
 	MapDir         string   `toml:"map"`
 	RedisPort      int      `toml:"redis_port"`
 	RedisHost      string   `toml:"redis_host"`
-	ColorsFile     string   `toml:"update_hosts"`
+	ColorsFile     string   `toml:"colors"`
 	BGColor        string   `toml:"background"`
 	Workers        int      `toml:"workers"`
 	Transparent    bool     `toml:"transparent"`