Further fixes for the proposed Russian change on 2014-10-26.

* europe: Fix an 80-column issue in commentary.
(Asia/Novokuznetsk): Switch abbreviation from NOVT to KRAT on 2014-10-26
at 02:00.
(Asia/Krasnoyarsk, Asia/Khandyga, Asia/Sakhalin, Asia/Ust-Nera):
Subtract an hour on 2014-10-26 at 02:00.
(Asia/Magadan): Subtract two hours at that time.
* zone.tab (Europe/Samara, Asia/Novokuznetsk, Asia/Magadan, Asia/Kamchatka)
(Asia/Anadyr): Update descriptions relative to Moscow time.
* NEWS: Document this.
Prefer MSK/MSD for Volgograd when on Moscow time.

* europe: (Europe/Volgograd): Prefer MSK/MSD for Moscow time.
* NEWS: Document preference for MSK/MSD and EET/EEST.
Standardize commentary on the coverage of each Russian zone.

This borrows heavily from Oscar van Vlijmen's earlier work here.
Mention recent mergers of regions as well.
* europe (Europe/Volgograd): Reattribute old comment to Paul Eggert.
(Asia/Yakutsk): Confirm that Zabaykalsky Krai will need its own zone
from 2014-10-26.
(Asia/Vladivostok): Mention that Bulunsky District will need its own
zone to correctly record its history.
(Asia/Magadan): Mention that the parts of Sakha (Yakutia) Republic and
the North Kuril Islands covered by this zone will need their own zone
from 2014-10-26.
* NEWS: Document this.
Zone splits for the proposed Russian change on 2014-10-26

Also, a historical split.
* europe: Add commentary describing proposed future zones Asia/Chita and
Asia/Srednekolymsk, as well as proposed historical split Asia/Tiksi.
* NEWS: Document this.
Update zone.tab for Russia, and remove Asia/Tiksi comment.

My best guess is that the Asia/Tiksi entry is a false alarm,
and that the area hasn't diverged from Yakutsk since 1970.
* europe: Move zone.tab comments to zone.tab.
(Asia/Yakutsk): Move comment for Bulunsky district here,
Remove a comment about a draft Asia/Tiksi zone, containing the
Bulunsky district.  We don't have sufficient evidence that it
ever diverged from Yakutsk after 1970.
* zone.tab (RU): Reorder entries to make more geographical sense.
Add comments for draft zones Asia/Chita, Asia/Srednekolymsk.
(Europe/Samara, Asia/Novokuznetsk, Asia/Magadan, Asia/Kamchatka)
(Asia/Anadyr): Mention that the Moscow offset changes 2014-10-26.
* NEWS: Document the above.