Upgrade the Listen gem

lib/autospec/manager.rb

@@ -179,12 +179,14 @@ class Autospec::Manager
       puts "@@@@@@@@@ Listen to #{path}/#{watch} #{options}" if @debug
       Thread.new do
         begin
-          Listen.to("#{path}/#{watch}", options) do |modified, added, _|
+          listener = Listen.to("#{path}/#{watch}", options) do |modified, added, _|
             paths = [modified, added].flatten
             paths.compact!
             paths.map!{|long| long[(path.length+1)..-1]}
             process_change(paths)
           end
+          listener.start
+          sleep
         rescue => e
           puts "FAILED to listen on changes to #{path}/#{watch}"
           puts e