This allows windows to be uniquely identified and shared with
clients that are running outside of the DMDirc process (e.g.
a web UI, or a remote instance).

Migrate all users to using the InputModel.

Despite its name and description, the WindowManager relied on
each FrameContainer having a reference to its parents and all
its children.

The WindowManager now stores this information itself, and so
the FrameContainer methods can be gradually phased out.

Formats defined in YAML can specify 'timestamps: false' to hide
the default timestamp for lines associated with that event.

Closes #633

This will allow plugins to supply their own format providers
while still allowing the user to override them using the
main format.yml file.

Issue #622

With numeric formatting gone, all output is either added direct
to a window (which will be changed soon) or done through
displayable events. Message sinks are now completely unused,
as they don't affect displayable events.

Issue #426

This allows events to iterate over a collection property, and
adds formatting for whois results. It needs a lot of tidying,
but it's a start...

The logic to get a correctly typed setting given a class is
pretty general purpose, and will be useful elsewhere. Pull
it out of ConfigBinder and add some tests for it.

This saves getting the FS and suffering the barrage of warnings
related to auto-closeable resources.

This means each test doesn't have to set it up and tear it down
manually (although only one actually did bother to tear it down :)).

The "old" profiles were pre 0.6.3m1 - if anyone upgrades from that
long ago they'll just lose their profiles.

Instead of passing them in to the FrameContainer ctor, create
them afterwards.

This means the reference in FrameContainer can't be final but
removes the horrible setOwner() kludge that was previously in
CommandParser, and cuts down the deps needed to pass in to the
FrameContainer ctor.

(This depends on a plugins change)

This just provided default implementations of most of the
ReadOnlyConfigProvider interface, which as of J8 we can
now just put in the interface itself.