Relocate Galaxy-specific .sample file handling.
Preserve attributes on copy.
Use toolshed config defaults.
Fix typo.
Add support for rerooting.
Smarter, but still dumb, rerooting.
Workaround for being old.
Update nginx.conf if galaxy gets rerooted.
Make sure the www-data user can read the static dir.
Switch to ubuntu:12.04.
Clean up a few things while we have the chance.
Collapse wget install into rest of packages.
Add --follow-symlinks to sed invocation.
Fix up rerooting and exports so they work together.
Remove unlink flag.
Do file/dir creation as the galaxy user.
Run nginx as www-data:galaxy.
Make rerooting optional.
Avoid an error when the dir exists but isn't ours.