Enhance smokerd-rhel init script
Enhance smokerd-rhel init script

 * avoid nasty things like "line 74: [: 3644: unary operator expected"
 * say what is wrong during failure
 * create subsys lockfile earlier
 * also check for subsys lockfile existence before running start action

pbenas/smoker,gooddata/smoker,pbenas/smoker,gooddata/smoker