Change paths in config-file
Start jsonrpc implementation
Make DB Backends optional

 - Add sqlite3 boilerplate (for development)
   - Optionally build sqlite3 backend
   - Optionally build postgresql backend
     - Fix building wihtout postgresql
 - Rename PResultVal to JResultVal
 - Add JPluginType enum to support different types of plugins
 - Add more error-reporting to SSL Initialisation
Rename sqlite plugin to sqlite3