In js/belchertown.js.tmpl function get_outTemp_color returns incorrect color when outTemp <= 0 and unit is "degree_C"

[PBudmark]

While inspecting the code in js/belchertown.js.tmpl, this error was recognized:

The function get_outTemp_color in js/belchertown.js.tmpl is incorrect regarding outTemp when (unit == "degree_C) and low temperatures.
The first test (in line 194) is (outTemp <= 0) but should read (outTemp <= -17.8) to match Farenheit processing (in line 162)
This error was introduced in some of the initial commits.

#Line 193:
    } else if (unit == "degree_C") {
        if (outTemp <= 0) {
            var outTemp_color = "#1278c8";
        } else if (outTemp <= -3.8) {
            var outTemp_color = "#30bfef";
        } else if (outTemp <= 0) {
            var outTemp_color = "#1fafdd";

 #Line 161:
    if (unit == "degree_F") {
        if (outTemp <= 0) {  
            var outTemp_color = "#1278c8";
        } else if (outTemp <= 25) { 
            var outTemp_color = "#30bfef";
        } else if (outTemp <= 32) { 
            var outTemp_color = "#1fafdd";