Hard-coded absolute URL path in frontpage_welcome.html

[anongoblin]

I'm attempting to run mediagoblin at a path that's not the root of the site, e.g. http://example.com/gobble

This works just fine, except for one hard-coded path: in frontpage_welcome.html it says:

    <img class="welcomeimage" src="/mgoblin_static/images/home_goblin.png">

and should be preceded by the context path, /gobble in my example.

[ayleph]

This is a duplicate of #902 which is already fixed in master.

​https://gitorious.org/mediagoblin/mediagoblin/commit/c8c09bc43b91c0c78ad281e66aee713ff991909a