GuildWiki:Merge holiday locations

This project is geared toward making all holiday event locations be in one article, but have a "Differences" section, that notes the differences between each version.

Why?
Because it seems terminally stupid to create Lion's Arch (Wintersday 2007, 2008, 2009, 2010, 2012, etc) when there will be little difference, it also reduces the amount of work there is in creating all redecorated towns articles each year.

What needs to be done

 * Need to get community feelings on whether to carry this out.
 * Need to merge articles such as Lion's Arch (Wintersday 2006) into one article called Lion's Arch (Wintersday)
 * Create redirects to the master article.
 * Reword (if appropiate)