Lightning Trunk Version Changed to 1.0b4

[Philipp Kewisch]

As you may have noticed if you are running a Thunderbird 3.3 alpha or
nightly, Lightning has changed its version number from 1.1a1pre to
1.0b4pre. I'd like to take a moment and explain why we changed this
and what effects it may have.

As mentioned on the Calendar Versions [1] page, we need to follow the
release cycle of Thunderbird. Users will (and have, in the past)
massively complain if a new version of Thunderbird is released without
a corresponding Lightning version. Although there is no final plan yet
when Thunderbird 3.3 will be released, the ballpark figure is some
time in April. This would mean we have something between 3 and 7 weeks
to complete our next release.

If we continue our previous plan and release Lightning 1.0b3, which
would work on Thunderbird 3.1 and 3.2, we would have just enough time
to complete that release and would need a near to equal amount of time
to prepare for a Thunderbird 3.3 compatible release. As you can
imagine, this is not feasible.

Therefore we have decided to leave out 1.0b3 and concentrate on
releasing 1.0b4, which will be compatible with Thunderbird 3.3.

*For localizers*, this means they will have to make sure l10n-central
is correctly translated. Resulting l10n builds can be found here. Pike
is working hard to make sure the l10n dashboard can keep up with our
branch switching. As soon as he is done, we can officially announce
string freeze and accept sign-offs. This of course doesn't mean you
need to wait. We have checked in all bugs that require string changes,
so go ahead and translate!

*For Seamonkey*, this means that Lightning 1.0b4 will support
Seamonkey 2.1, which is currently in its beta phase.

In turn, we no longer have a need for 1.0b3pre nightly builds. This
might be unfortunate for Thunderbird 3.1 users that want to stay up to
date with the latest Lightning features. On the other hand, the list
of bugs to be fixed for the next beta doesn't contain any more new
features. We will concentrate on fixing bugs and regressions to make
sure Lightning 1.0b4 doesn't cause any surprises for your daily work.

[1] https://developer.mozilla.org/en/Calendar/Calendar_Versions