Copy the getting started webapp sample to trunk samples

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1086589 13f79535-47bb-0310-9956-ffa450edef68

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+Tuscany - Getting Started - Helloworld WebApp Sample

+----------------------------------------------------

+

+This sample demonstrates how to use SCA contributions with Web Applications

+

+See the README in the top-level samples folder for general information on the Tuscany samples.

+

+This sample project creates a .war web application which includes Tuscany. The SCA contribution

+from the helloworld sample is included within the war and its SCA composite started by the webapp,

+and there is a JSP page which shows how to invoke SCA services by using the SCA taglib.

+

+As this sample creates a web application .war archive there is a manual step to deploy the WAR file

+to your web application server. The archive is the helloworld-webapp-<version>.war in the target folder.

+Alternatively, you can run it by using the Maven Tomcat plugin by using the following command:

+

+   mvn tomcat:run

+

+Once the web app is running use your browser to visit the following URL;

+

+http://localhost:8080/helloworld-webapp

+

+(The port and hostname will of course vary depending on your local installation) 

+

+You should then see web page return the following:

+

+   Calling HelloworldService sayHello("world") returns:

+

+   Hello world 
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