Adding all files from old site

Since we use /en-us/ for all new content, there is no clash
Adding .htaccess from old site

This redirects URLs from fontforge.sourceforge.net to fontforge.org
seamlessly
Change .htaccess

Redirect fontforge.sf.net to fontforge.gitub.io. I’ll upload this file
to the sf.net site when we are ready, and then any links to that site
will still work after we redirect the domain fontforge.org to github’s
servers
Insert migration message to the top of every page
Old Site: Fix BODY tag
index.html: Add back redirect to /en-US/
Removing /old
Remove homepage oldsite banner
Adding CNAME for fontforge.org
Merge pull request #31 from fontforge/oldsite

Add old site contents for transition