Atlassian removes support for CNAME 2015-07-01.

Some URLs gathered during a quick Google search:

• http://hg.dereckson.be/zed/src/0ffd1b08f33c/includes/login.php [the Azhàr imported code contained an OpenID provider when committed according Git history]
• http://hg.dereckson.be/azhar [Mercurial repo, so not served anymore]
• http://hg.dereckson.be/freebsd-ports/src/tip/ [ok]
• http://hg.dereckson.be/freebsd-ports/src/tip/math/ [ok, but 404 as no more math ports]
• http://hg.dereckson.be/source-templates-generator [ok]
• http://hg.dereckson.be/freebsd-ports/src/tip/net/quicktun/ [OK]
• http://hg.dereckson.be/zed/ [ok]

So we have two main cases:

• /{REPO}[/]
• /{REPO}/src/{COMMIT}/{FILE}

We could intercept stuff, or simply do this:

• http://hg.dereckson.be/zed/(.*) -> https://bitbucket.org/dereckson/zed-hg/$1 [OK]
• http://hg.dereckson.be/(.*) -> https://bitbucket.org/dereckson/$1 [OK]