[development] Tagging and branching, again.

[Moshe Weitzman]

> Whatever happened as a result of our long rants of svn vs cvs

Let's not go there. Many of us are focused on getting the 4.7 release out.
Many others are focused on updating their modules. Dries asked for this
courtesy a couple months ago and I'm maintaining the focus in his absence.

We will resume our regularly scheduled banter soon.

Thanks.
-moshe