gdb: disable loading of auto-loaded files

https://sourceware.org/gdb/onlinedocs/gdb/Auto_002dloading.html

There are two main reasons for doing so:
1. we cannot trust anybody
  - the auto-loaded file may change the output format
  - security?
2. bugs in such a files (#817)

Signed-off-by: Jakub Filak <jfilak@redhat.com>
replace deprecated GTK3 functions

Closes rhbz#1105940

Signed-off-by: Jakub Filak <jfilak@redhat.com>
Merge pull request #820 from abrt/june_rawhide_fixes

A pair of patches for problems in current Fedora Rawhide