Hello!

I found some minor bugs while reading documentation for Glib::KeyFile. I have no idea how can I create patch for documentation (because it's auto-generated, right?), so I'll list what I found:

Missing note about throwing exceptions:
1. Glib::KeyFile::get_keys ()
2. Glib::KeyFile::has_key ()
3. Glib::KeyFile::get_string ()
4. Glib::KeyFile::get_boolean ()
5. Glib::KeyFile::get_integer ()
6. Glib::KeyFile::get_double ()
7. Glib::KeyFile::get_comment ()
8. Glib::KeyFile::set_comment ()   	
9. Glib::KeyFile::remove_comment ()
10. Glib::KeyFile::remove_comment()
11. Glib::KeyFile::remove_key()
12. Glib::KeyFile::remove_comment()

Invalid description of return value:
1. Glib::KeyFile::get_comment ()
2. void Glib::KeyFile::set_comment (const Glib::ustring &group_name, const Glib::ustring& key, const Glib::ustring& comment)
3. Glib::KeyFile::remove_comment()
4. Glib::KeyFile::remove_key()
5. Glib::KeyFile::remove_comment()

I found similar bugs in other sections of API reference. In many places documentation doesn't mention about exceptions (e.g. bool Gtk::Builder::add_from_file (const std::string &filename)).

Sometimes, when function is overloaded (like Gtk::Builder::add_from_file() ) only under one version documentation mentions about exceptions.