[pgconfiguration-model] First version. Created Java POJOs for model representation
[pgconfiguration-ws] First version. Skeleton of the WS server, maven dependencies and logging
[pgconfiguration-ws] Added the first rest WS. Better shaped the project structure and jetty server configuration
[pgconfiguration-ws] Added support for setting a parameter. Data is now read and persisted from/to disk
[pgconfiguration-ws] Added params, categories, dump, save and index-like web services. Some code refactors