Code review comment for lp:~3v1n0/unity/gnome-keys-timestamp-api

corresponding u-s-d changes on https://code.launchpad.net/~seb128/unity-settings-daemon/timestamp-for-commands/+merge/253394

we agreed on having the unity version bumped to 7.3.2 in the next release so u-s-d can update its requirement to this version