Added diwa profile support. Displays a profile selection dialog if any profiles are found at "~/.diwacs/profiles". Profiles are INI files which include at least following parameters from config to be considered valid:
- DB_ADDRESS
- DB_NAME
- DB_TYPE
- DB_USER
- DB_PASS
- STORAGE
- PGM_GROUP

Optional parameters:
- CAMERA_URL
- CAMERA_USER
- CAMERA_PASS

Config file parameterw for database and storage are not used if a profile has been loaded.