Deprecated keyword in plugins: dancer_app

[xsawyerx]

Why?

Just like the plugin_setting keyword in plugins, this is also a keyword from the old plugins interface. There is no need for this keyword since the new plugins interface is object-oriented and has the available methods.

Benefits to Dancer2 codebase

A cleaner, leaner code-base.

Benefit to Dancer2 Community

A more consistent, less confusing interface.

Alternatives

When writing a plugin, use the $self->app() method instead.

[cromedome]

Deprecated in #1696. Closing.