Increasing trunk libgtk dependency to 2.22.0?

[Christian Stimming]

Currently, SVN trunk requires libgtk-2.18.1. However, recently (in r22086 from 
patches in bug#672161) some new code was added that uses functions that were 
introduced in gtk-2.22, e.g. gtk_assistant_commit.

Can we increase our required libgtk to 2.22? Current Ubuntu 11.10 comes with 
2.24.6; other up-to-date distros probably with similar versions. What do you 
think?

Regards,

Christian