* Remove IErrorDomain related code. This functinality was removed
from GObject Introspection in version 1.29.17
* No longer use _id2ref to locate objects past as user data
pointers.
* Fix failing tests on JRuby.
* Change interface to the underlying builder in generated modules
and classes.
* Handle string, enum, union, flags signal arguments.
* Handle string arguments in GObject.signal_emit.
* Handle enum signal arguments.
* Fix finding signals in non-introspectable types.
* Fix method setup in non-introspectable types.
* Refactoring.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:ruby:extensions/ruby-build?expand=0&rev=8
