be more precise when getting pid's of resque workers to kill: do NOT kill resque-web

Author: cokron

lib/resque/worker.rb

@@ -456,7 +456,7 @@ def hostname
     # Returns an array of string pids of all the other workers on this
     # machine. Useful when pruning dead workers on startup.
     def worker_pids
-      `ps -A -o pid,command | grep [r]esque`.split("\n").map do |line|
+      `ps -A -o pid,command | grep [r]esque | grep -i "resque-web"`.split("\n").map do |line|
         line.split(' ')[0]
       end
     end