Fix: Properly unload failed app

[OndroMih]

Without this change, failed deployment failed to trigger some events that usually happen during undeployment. This fixes the error handler to properly clean everything up and trigger events that correspond to deploy and undeploy called in a sequence.

Tested with:

• Deployment error: deploy --name app1 --contextroot / app.war && deploy --name app2 --contextroot / app.war - deploys an app with name "app1" (success), then deploys the same app, same context root, with name "app2" - failure because the context root must be unique
• Deployment success & undeploy: deploy --name app1 app.war && undeploy app1 -

Without this change, the events trigger :

Deployment error	Deployment success & undeploy
Event type: "Initial_Context_Created"	Event type: "Initial_Context_Created"
Event type: "Deployment_Start"	Event type: "Deployment_Start"
Event type: "After_Deployment_ClassLoader_Creation"	Event type: "After_Deployment_ClassLoader_Creation"
Event type: "Deployment_ClassLoader_Creation"	Event type: "Deployment_ClassLoader_Creation"
Event type: "After_Application_ClassLoader_Creation"	Event type: "After_Application_ClassLoader_Creation"
Event type: "Module_Prepared"	Event type: "Module_Prepared"
Event type: "Application_Prepared"	Event type: "Application_Prepared"
Event type: "Module_Loaded"	Event type: "Module_Loaded"
Event type: "Module_Loaded"	Event type: "Module_Loaded"
Event type: "Application_Loaded"	Event type: "Application_Loaded"
Event type: "Module_Running"	Event type: "Module_Running"
	Event type: "After_Servlet_Context_Initialized"
	Event type: "Module_Running"
	Event type: "Application_Running"
	Event type: "Deployment_Success"
	Event type: "Undeployment_Validation"
	Event type: "Undeployment_Start"
	Event type: "Module_Stopped"
	Event type: "Module_Stopped"
	Event type: "Application_Stopped"
	Event type: "Module_Unloaded"
	Event type: "Module_Unloaded"
	Event type: "Application_Unloaded"
Event type: "Application_Disabled"	Event type: "Application_Disabled"
	Event type: "Module_Cleaned"
	Event type: "Module_Cleaned"
	Event type: "Application_Cleaned"
	Event type: "Undeployment_Success"
Event type: "Deployment_Failed"

With this change, all relevant events are triggered:

Deployment error	Deployment success & undeploy
Event type: "Initial_Context_Created"	Event type: "Initial_Context_Created"
Event type: "Deployment_Start"	Event type: "Deployment_Start"
Event type: "After_Deployment_ClassLoader_Creation"	Event type: "After_Deployment_ClassLoader_Creation"
Event type: "Deployment_ClassLoader_Creation"	Event type: "Deployment_ClassLoader_Creation"
Event type: "After_Application_ClassLoader_Creation"	Event type: "After_Application_ClassLoader_Creation"
Event type: "Module_Prepared"	Event type: "Module_Prepared"
Event type: "Application_Prepared"	Event type: "Application_Prepared"
Event type: "Module_Loaded"	Event type: "Module_Loaded"
Event type: "Module_Loaded"	Event type: "Module_Loaded"
Event type: "Application_Loaded"	Event type: "Application_Loaded"
Event type: "Module_Running"	Event type: "Module_Running"
	Event type: "After_Servlet_Context_Initialized"
	Event type: "Module_Running"
	Event type: "Application_Running"
	Event type: "Deployment_Success"
	Event type: "Undeployment_Validation"
	Event type: "Undeployment_Start"
	Event type: "Module_Stopped"
Event type: "Module_Stopped"	Event type: "Module_Stopped"
Event type: "Application_Stopped"	Event type: "Application_Stopped"
Event type: "Module_Unloaded"	Event type: "Module_Unloaded"
Event type: "Module_Unloaded"	Event type: "Module_Unloaded"
Event type: "Application_Unloaded"	Event type: "Application_Unloaded"
Event type: "Application_Disabled"	Event type: "Application_Disabled"
Event type: "Module_Cleaned"	Event type: "Module_Cleaned"
Event type: "Module_Cleaned"	Event type: "Module_Cleaned"
Event type: "Application_Cleaned"	Event type: "Application_Cleaned"
	Event type: "Undeployment_Success"
Event type: "Deployment_Failed"