gcr: Enable gnome2 keyring storage

It's the only one that sorta works currently. This really is
a technology preview however.
Merge branch 'gnome-3-4'
gcr: Fix signal documentation for GcrParser
Updated Greek translation
Use GBytes instead of our own EggBytes

 * Bump glib minimum version to 2.32
egg: Rework how DER parsing works

 In particular fix things like
 * Indefinite parsing
 * Encoding of defaults
 * Ability to read values that haven't yet been encoded
 * Proper handling of ANY tags
egg: A few more asn.1 comments
Release version 3.5.3
Documentation fixes

 * Clean up documentation and introspection warnings
 * Separate GcrImportInteraction docs into own page
Updated Slovenian translation
Remove support code for old glib versions

 * Remove a bunch of #ifdefs for old glib versions prior
   to 2.32.0.
 * Already bumped glib dependency in a recent commit.
Updated Indonesian translation
po/vi: import from Damned Lies
Updated Vietnamese translation
gcr: Fix invalid warning when sending a secret exchange

 * We checked the prefix of the sent data, but didn't correctly
   remove whitespace. In addition the check was inverted
 * Exposed by recent changes to glib, which changed the whitespace
   in the format a GKeyFile slightly
gcr: Add debug output to GcrSecretExchange
Merge branch 'gnome-3-4'
Updated Norwegian bokmål translation
Updated Traditional Chinese translation(Hong Kong and Taiwan)
Updated Lithuanian translation