block: Add all IO Schedulers

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
block: Disable add_random

add_random was implemented for spinning hard disks.  It only slows SSDs down.  Read here http://wiki.samat.org/SSD for more info.

Signed-off-by: Chester Kener <Cl3Kener@gmail.com>
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
block: Disable IO Stats

* I see no need to have this enabled.  Will test to verify that it is not needed.

Signed-off-by: Chester Kener <Cl3Kener@gmail.com>
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>