For whatever reason, sometimes linebreaks are only denoted as \n in the
querry-result. This lead to the temperature RegEx matching the dew point. This
caused the temperature to be reported the same as the dew point. These changes
should make the RegEx more specific and work consistently, no matter if
linebreaks are actual linebreaks or just \n.
The read function on an urllib urlopen object returns an object as a response.
Regular expressions using re can't be used on such objects. This causes
the following error:
```
Traceback (most recent call last):
File "/tmp/weather/./weather_press_LOWW", line 43, in <module>
hpa = re_hpa.findall(txt)[0]
TypeError: cannot use a string pattern on a bytes-like object
```
This can be easily fixed, because said object can simply be cast to string.
Which is, what this patch does for both the US NOAA based plugins.
