Charles Chan b3ef1fd63b Fix GroupKey interpretation in REST
Input string from REST should not be converted into byte array directly.
Before: "1" -> ascii 49 -> 0x31
After: "0x01" -> 0x01
GroupKey is a byte array with arbitrary length and represented by hex string

Change-Id: If27101f0e5522212c7e434fab58b66e67e9676d7
2016-06-29 14:57:13 +00:00
..
2016-06-29 14:57:13 +00:00