Added Aragonese translation
Allow also python2.5-config, python2.6-config and python2.7-config

https://bugzilla.gnome.org/show_bug.cgi?id=695957
Allow also python-config
Converted Portuguese translation to New Spelling (Novo AO)
Enable python3 in the demo
[l10n] Added Tadjik translation
Release 1.8.0
[PeasUIConfigurable] use the right return value
Remove use of push and pop composite child

These are now deprecated.

https://git.gnome.org/browse/gtk+/commit/?id=c6ab5157358bc364eede018acc14de976add195c
Fix Gjs plugin loader

The garbage collection now takes a runtime instead of a contex
so just use Gjs's gc method to do the right thing and jsvals
cannot be compared anymore.