UserInfo added in weather data to get user units preferences

Such as :
w = weatherData(...)
user = w.user

user.mail
user.unit -> "metric"
user.windunit -> "kph"

Check Netatmo documentation for the different values (can also look in the code the definition of UNITS)

Fix to survive Netatmo continuous breaking changes :-)

When a station or module is lost (battery exhausted for example), dashboard_data will no longer be available. Bad news, it was interesting to know all the data about the "last" time data was available... But continuous breaking change is part of Netatmo culture !

Minor fixes

v1.4.5

Fix typo error

Fix #23 and #24

Fix to allow working with stations without any external module and new modules that do not supply time of measurement

Minor : Add support for station by Id in lastData

1.4.3

Ability to use station_id in place of name for lastData in station pa…

Improved camera support

Added homeData methods for camera :

• url : to get the best url for direct access to camera (local if possible else netatmo VPN)
• getLiveSnapshot : to obtain a full resolution Jpeq image of the live camera view
• presenceStatus : to switch Presence camera (and detection/notification) on or off

Bug fixes and minor improvments

No impact on existing usage.
Authentication data file is now case insensitive for fields (eg CLIENT_ID or client_ID...)
If no module name is supplied in Netatmo web interface for your module, lnetatmo will use module ID as the default module name.

Update for cameras use

Fix for bigger response due to large Home data request (see #11)