Readd PortletServlet without unnecessary parameter

Conflicts:
	osgi/modules/polls-application/polls-web/src/main/webapp/WEB-INF/web.xml
Own deploy folder
Revert "Remove TODO and some non required servlet"

This reverts commit 1cb7876cb6a14787794f459383bb97f7b02247d3.
Add a new isInitialized() method to Utils
Autogenerated SB
Eliminate classLoader dependency using isInitialized
Remove classLoader from method signatures
Add convenience method to get the ClassLoader from an OSGi Bundle
Add null check
Remove dependency on ClassLoader and ServletContext and introduce new ResourceLoader
We do not have polls here anymore
missing import
remove polls-test
Eliminate the dependency on PluginContextListener
Add PluginPackageBundleListener
Manually place ServiceBuilder files in place
No longer needed here