This allows "unstyled" to actually work.

Closes #755

I'm sure this will be changed/redone, but this is at least a start by allowing
certain events to go to all windows (eg ServerNotices)

Ideally it would be possible for some events to only be displayed in the window
that generated them (eg if I do /notice foo bar the ">-{{target}}-> {{message}}"
message only appears in the window I ran the command in, not either just the
server window or all the windows, but this would need changes to a bunch of
events to make them include a source window.

Fix errors from previous commits.

Add /reloadformat command.

Fix some unused imports/fields/etc.

Move config provider tests to the right place.

Remove legacy default colour behaviour.

We now specify the default colour using display properties, not
by ascribing special value to the first colour code in a message.

Closes #741

First pass at a style guide.

Remove config dependency on ClientInfo.

Move Migrator and LifecycleController to bundles.

Add some more bundles

Move config bindings into a bundle.

Issue #750

Apply OSGI plugin.

Move Yaml utils to com.dmdirc.util.io.yaml bundle.

Issue #750

Move event bus code to a bundle.

Issue #750

Add "unstyled" formatter func to strip control codes.

Closes #755

Add OSGI dependency, activator.

This won't affect normal use of the client, other than it having
a few extra unused classes and some additional lines in the
manifest.

Issue #750

Fix getStyledText() scrubbing underline and stop chars.

Closes #757

showrawwindow isn't a setting.

Issue #753

Fix stripping nickname control codes.

Closes #751

Update copyright.

Apply object display properties when formatting events.

If an object in a formatter tag ({{foo.bar.baz}}) is Displayable,
then we will modify the output based on its display properties.

Currently only supports user links and foreground colours.

This also changes the internal format of nickname links to be
`\u16<nick to link to>\u16<text to show>\u16`, allowing the
link and text to differ. This means if you formatted users
by showing their realname, you could still click them to
open a query.

Closes #424
Closes DMDirc/Plugins#507