watchos

Some files in the repository are missing newlines at the very end, as pointed out by @nrbrook in #1026

Classes/CocoaLumberjack.h was specifically mentioned, but there could be other files that are missing this as well.

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Is your feature request related to a problem? Please describe.
Doc string states:
Date().weekday -> 5 // fifth day in the current week.
Guess what, 5 is not friday. It's thursday. It makes some sense after i dug deeper, but as a programmer, i assumed monday could be 0 or 1, therefore thursday should be 3 or 4. Monday is 2! Because sunday is 1!

**Describe the solution you'd li

The GCHandle allocated here:

https://github.com/xamarin/xamarin-macios/blob/2930c052b32318af63c1f3b90f6447f6907548b8/src/SystemConfiguration/NetworkReachability.cs#L252

is never freed.

Also we don't have tests for NetworkReachability.SetNotification.

Similar to how Weblinkpreview allows you to search for any property tag.

webLinkMetadata["image"] // String for <meta property="og:image" ...>

The above method allows for searching for any tag, which would be useful to search for things that we need.

Hi

So that extension on NSImage on macOS makes a blank image and has a placeholder input string to maybe do something with in the future or...?

Thanks in advance.