redisConnect errors out when integer port is used.

[s-u]

redisConnect refuses to use integer ports (e.g. redisConnect("localhost", 6379L) will throw an error). The culprit is

stopifnot(class(port) == "numeric")

which should read

stopifnot(is.numeric(port))

(integers are numeric, but they have the class "integer").

[bwlewis]

Thanks, should be fixed in commit

98bdaad

along with a few similar type checking cases.