add start|stop|restart|run to crono executable

this is done using daemonize gem, but it is not breaking the old
interface. But sets a deprected comment to the old one daemonize
process.

spec/config_spec.rb

@@ -9,7 +9,11 @@ describe Crono::Config do
       expect(@config.cronotab).to be Crono::Config::CRONOTAB
       expect(@config.logfile).to be Crono::Config::LOGFILE
       expect(@config.pidfile).to be nil
+      expect(@config.piddir).to be Crono::Config::PIDDIR
+      expect(@config.process_name).to be Crono::Config::PROCESS_NAME
       expect(@config.daemonize).to be false
+      expect(@config.deprecated_daemonize).to be false
+      expect(@config.monitor).to be false
       expect(@config.environment).to be_eql ENV['RAILS_ENV']
     end
 
@@ -23,8 +27,8 @@ describe Crono::Config do
           specify { expect(pidfile).to be_nil }
         end
 
-        context "daemonize is true" do
-          before { config.daemonize = true }
+        context "deprecated_daemonize is true" do
+          before { config.deprecated_daemonize = true }
 
           specify { expect(pidfile).to eq Crono::Config::PIDFILE }
         end
@@ -36,7 +40,16 @@ describe Crono::Config do
         before { config.pidfile = path }
 
         specify { expect(pidfile).to eq path }
+
+        it "trys to set piddir" do
+          expect(config.piddir).to eq "foo/bar"
+        end
+
+        it "trys to set process_name" do
+          expect(config.process_name).to eq "pid"
+        end
       end
+
     end
   end
 end