Add support for remote device A5-20-01.

- Add new converter for Integer to/from DecimalType.
- Add support for DeviceParameter updates initiated by internal logic.
- Bump library for the device support.
Add documentation for remote device A5-20-01.
Update eclipse project settings.
Merge pull request #5 from maggu2810/rd-a52001

Remote device A5-20-01, -> All okay