To Do List:

When a directory and all below it is copied:
  1. the targets of symlinks is not copied
  2. Absolute symlinks are not corrected to point into the destination tree.

FIX - When a directory includes a proc file system, copying that tree hangs -
example is in named.py when running a chrooted named.

ADD - allow each plugin to optionally not load, and to be able to test whether
other packages are installed. For example, if apache isn't installed, don't
load the apache plugin.

Documentation - man page, plugin howto doc, inline doc in plugin template

review and test error handling for things like a full tmp file system

Make the [ OK ] type completion messages pretty and correct - see helpers.py