Bundle needed stock icons recently dropped from gnome-icon-theme.
Need to reevaluate which icons we really need and drop the rest.
Many are not Tango-compliant and look dated and out of place.
The following icon names are bundled:
stock_alarm
stock_bell
stock_check-filled
stock_contact-list
stock_insert-note
stock_mail-filters-apply
stock_mail-flag-for-followup
stock_mail-flag-for-followup-done
stock_mail-open-multiple
stock_mail-unread-multiple
stock_new-meeting
stock_score-high
stock_score-higher
stock_score-highest
stock_score-low
stock_score-lower
stock_score-lowest
stock_score-normal
stock_shared-by-me
stock_shared-to-me
stock_show-all
stock_signature
stock_signature-bad
stock_signature-ok
stock_task
stock_task-assigned
stock_task-assigned-to
stock_task-recurring
stock_timezone
stock_todo
stock_video-conferencing
stock_view-details
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