Recommended udpate for gtk2

This recommended update for gtk2 fixes the following issue:
- boo#933034:
+ Allow credentials from gnome-keyring to be used for printing in GTK 2 (bgo#743166)
+ Fix applications from randomly crashing while printing with a password-secured SMB printer (bgo#737777)

Fixed bugs
bnc#933034
GTK-2.0 applications (eg Thunderbird/Firefox) do not save credentials for printing
Selected Binaries
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