V0.2.3

@Ronan This pull requests add an example app that will be the testing app for the p97 question types. If you have grunt installed it you should be able to go the the example/ directory and run grunt serve to start the app. I also changed the directory structure of p97-components. All the files are now in a subdirectory called dist/ and the template files are in dist/templates/. You will need to adjust your app get the files from the new location.