Current is NOT displayed as negative value

[pstrand1959]

Negative current values are not correct.

-1.0A is showed as -2999,000 A

Current Phase 1 2,600 A 2,6A
Current Phase 2 −2 998,800 A -1,2A
Current Phase 3 −2 999,100 A -0,9A

[pstrand1959]

Made a small fix for this because simpleatof() doesn't handle negative values.

void parseRow(const char* obisCode, const char* value) {
    double obisValue;
    char tmp[16];
    strcpy(tmp, value);
    if (tmp[0] == '-')
    {
      tmp[0] = '0';
      obisValue = -simpleatof(tmp);
    }
    else
    {
      obisValue = simpleatof(tmp);
    }

    parseRow(obisCode, obisValue);
}