34_SWAP.pm: added flash command for panStamp NRG ota update (by mgehre)

[System]

34_SWAP.pm: added flash command for panStamp NRG ota update (by mgehre)

34_SWAP.pm: added flash command for panStamp NRG ota update (by mgehre)             added internals and readings cleanup on ProductCode change (by mgehre)             added createUnknownReadings attribute             see also: http://forum.fhem.de/index.php/topic,30589.msg233658.html#msg233658View Changes

Source: 34_SWAP.pm: added flash command for panStamp NRG ota update (by mgehre)