HotWaterTemperatureReset computes wrong results if room temperature differs from nominal value

[mwetter]

The equation
{{{
TSup = TRoo_in_internal
+ ((TSup_nominal+TRet_nominal)/2-TRoo_in_internal) * qRel^(1/m)
+ (TSup_nominal-TRet_nominal)/2 * qRel;
}}}
should be formulated as
{{{
TSup = TRoo_in_internal
+ ((TSup_nominal+TRet_nominal)/2-TRoo_nominal) * qRel^(1/m)
+ (TSup_nominal-TRet_nominal)/2 * qRel;
}}}

[mwetter]

[mwetter] This is fixed on the trunk, revision 4999.