Use globs, set nullglob, and remove stdout redirection for import
Merge pull request #333 from rhy-jot/2013-11-20/backup-find-to-glob

backup:export: find -> glob
Add a version command.

The git tag/revision is saved when running "make install", and can be
displayed using "dokku version".
Use a hardcoded version if git revision is not available.
Add the date and time of installation if version is hardcoded.
Merge pull request #334 from plietar/version

Add a version command.
Fix capitalization for consistency
Merge pull request #337 from ryanseys/patch-1

Fix capitalization for consistency
Use $DOKKU_ROOT instead of $HOME
remove any default enabled sites for nginx
Add a list of known issues.
Merge pull request #341 from plietar/known-issues

Add a list of known issues.
Fix commands, the easy way.

Don't use pluginhook to run the commands hook, just run all the scripts
in a loop.
Don't explicitly specify streams to docker run.

Now that "docker run" always has an stdin, we don't need to explicitly
specify stdout and stderr.
Remove known issues and add note about ForceTTY

These issues are fixed by this PR.
Close stdin before running the backup-export hooks.

This avoids hanging when we're not in a pty.
Merge pull request #344 from plietar/commandfix

Fix commands, the easy way.
Don't fail if CONTAINER is inexistant.
Add an empty help message to the nginx-vhosts plugin.

Not doing anything just destroys the help message coming from previous
plugins. Run cat to forward stdin into stdout.
Add stable installation instructions