shoeset

This one is much closer to working than Shoefiti:
https://github.com/i5m/shoefiti/commit/e171e3d714d4e8b8f5889d8995ead8af357510b5

Same issues apply:
* Remove any debug() replace with "puts"
* Remove threading, at least for now
* Issues with clear{...}
* link in para is incorrect, doens't work properly
so thought about using edit_line, but there is an issue in
Cairo(?) at the time of writing that prevents text being
copied:
http://librelist.com/browser//shoes/2011/7/19/green-shoes-edit-box-copy-and-paste/
So no easy way to do authorisation at the minute)

I can almost walk this on through and get it working, just
can't get the tag cloud to display (although I think it is
being built) Leaf check-in: ad50732410 user: i5ivem@gmail.com tags: trunk, origin/green

* Because of threading used, if the user selected another item in the listbox
whilst the app was already running and generating a tag cloud, another
progress bar would appear, etc. This forces selections to run in serial,
i.e. will ignore the selection if cloud generator is already running
* Also resets list box selection to the set currently being used if user tries
to change whilst running
* Better future approach could be to cancel current cloud generation and start
again for new set selected. Debatable though... Leaf check-in: 4624b9404c user: i5ivem@gmail.com tags: trunk, v0.0.2

* An attempt to reduce the 'hang' of startup when the app is actually
performing flickr login and getting the set list
* Quite sure this could be done more nicely check-in: bb7231a2cb user: i5ivem@gmail.com tags: trunk

* API Key and Shared secret in external file
* Separated app into different methods
* This allows redrawing. If new set is selected
redraws progress bar and tag cloud
* Added logout method to clear token
* Other GUI refinements:
- Click on username to show/hide token
- logout button
- progress bar nudged slightly to right check-in: 73a783ca97 user: i5ivem@gmail.com tags: trunk, v0.0.1