These changes break compatibility for the serde representations of
`TagList` and `Toc`. Previous representation for the `TagList` was
a sequence. We now have to rely on a struct representation in order
to add `scope`.

Uses stable clippy for the time being

Otherwise we'll get warnings about lint names being deprecated without
being able to fix it while still being able to compile on stable.

This will solve itself once the new lint names move to stable and we can
switch to them.

Fixes #191

It's a Box<RefCell<_>> and not a plain Box<_> like for the other pad
functions, and doing this wrong causes crashes at runtime.

They can't possibly fail.

These can't possibly fail.

And fix nullability of others.

It was completely broken and has to be done differently. Once someone
actually needs it this can be re-added properly.

It's forbidden to provide an index higher than the number of elements in
the array, and will cause crashes or other undesired outcomes.

Also the insert() API should take an Option<u32> instead of an i32 that
might also be -1 for appending. It's awful API otherwise.

It's forbidden to provide an index higher than the number of elements in
the array, and will cause crashes or other undesired outcomes.

Also the insert() API should take an Option<u32> instead of an i32 that
might also be -1 for appending. It's awful API otherwise.

It has to take a mutable caps reference or otherwise will simply fail.

Fixes #189

For now this is the only OS supported by this test.

GlWindow was dropped in favor of CombinedContext and ContextTrait

Fixes: #190

... if it's between items in a list.

It is only comparing the times, and two clock ids with the same time are
obviously not the same.