Squashed commit of the following:

commit 00dbcbe879ea8ba1d370b7bc4960d18c7d5ed365
Author: fukayatsu <fukayatsu@gmail.com>
Date:   Sat Jan 11 21:33:53 2014 +0900

    [from now] 2014/01/11 21:33:53

commit 1eaad498f5809519dee9f4ec28aaada3a0b4b145
Author: fukayatsu <fukayatsu@gmail.com>
Date:   Sat Jan 11 21:29:09 2014 +0900

    [from now] 2014/01/11 21:29:09

commit b6bb5a81ae8f50ab29bba08784d590891ccc9ea9
Author: fukayatsu <fukayatsu@gmail.com>
Date:   Sat Jan 11 21:05:56 2014 +0900

    [from now] 2014/01/11 21:05:56
fix redis config