vttablet-up.sh : Adds detection of mysqld launch failure.  Given failure, tests for further for          presence of apparmor.  Exits with error and recommendation to disable.
vttablet-up.sh : Adds detection of mysqld launch failure.  Given failure, tests for further for          presence of apparmor.  Exits with error and recommendation to disable.

Signed-off-by: ChrisR <ee5d3997968dd8487e6603ee88ec7defa35bd337@gmail.com>

tinyspeck/vitess,vitessio/vitess,tinyspeck/vitess,vitessio/vitess,tinyspeck/vitess,vitessio/vitess,vitessio/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,vitessio/vitess,tinyspeck/vitess,tinyspeck/vitess,tinyspeck/vitess,tinyspeck/vitess,mahak/vitess,mahak/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,mahak/vitess