Version 1.7, alpha

After deciding to skip the 1.6 stable release, which would have had
only subtags, I moved on to add extended attribute support. I still
consider this release of TagFS to be in the alpha stage, however,
until more test code has been added for subtags and extended
attributes. At the same time, I have been using TagFS at this stage
for my own file management without incident.

Some utilities have been added for working with TagFS as well. I use
PCManFM for my file manager, and I find it useful to look at how a
file is tagged while browsing, so I wrote a module that will generate
a comma-separated list of tags in the status-line in the bottom of a
PCManFM window. There are also the tag (adds tags to files), ts
(like tag, but uses xattrs, and doesn't work on symlinks), and rt
(remove tag).