Oops, looks like I neglected to actually send this. Was in my drafts...
Anyway, I've tried to do some reading up on the charset tag and it seems these two lines are both supposed to be interchangeable
<meta charset="utf-8">
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
Though the debate goes on and on. I've update all the system skins to use the shorter (newer) setting. You were right that it was missing from the default skin. Eventually I'll go through and check all the others and update.
As for your login issue, a couple questions. Was this a new test site, or an existing site? The system would preserve your login status via sessions, but would need an account using the new mbase system to log you back in.
Did you try creating a new account using 7.01? If so, do you have a cryptkey set in your index.php file? It's possible that's not working right. By default, new systems do not use encryption.
Did you try it with the simplelogin plugin enabled? I haven't fully tested that, but just imported from the old version so should work...
If you did create a new account using the 7.01 system, can you verify that field/mbase/mbase.password was created. You should also see the email, name, title, since, &country pages. These are all created during the new account creation process...
Let me know so we can debug this and make sure it's working for new accounts. I have not yet done an upgrade script to convert old membership files to the new system...
Cheers,
Dan