advanced_forum 5.x-1.0-alpha1

This is the first in what will probably be a long line of alpha releases. There is still an incredible amount of work to do but I wanted to start having proper releases to more easily track peoples' issues. The only changes between this and the last dev version on Jan 11 are eigentor's improvements to the theme files. So if you are on the latest dev and want to upgrade, you won't see anything unless you copy over the advforum theme directory again. This will wipe out any changes you made to your theme so isn't necessary if you are happy with your theme as it is.