Add options to make it easier to control which features are enabled. All
of these default to enabled by upstream, so keep them enabled to
maintain previous behavior.
The convert option also supports reiserfs, but no recipes exist in the
layer index. Limit the option to ext filesystems until someone cares
enough to make reiserfs recipes.
Remove acl and attr from DEPENDS, as they do not apper to be needed. Add
zlib since it is required.
Signed-off-by: Robert Joslyn <robert.joslyn@redrectangle.org> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
