improved and got running on Fedora
Add some statistics
Significant improvements

Add statistics panel on the side
 - to do, add more stats
        , add ROI stats (after converting to pyqtgraph)
        , add 2nd panel for applying filters below the stats panel

Also bigger to do -- tree view of GPX files on the left
                     > this will initially just be for browsing files
                     > but eventually I'll make it the interface to
                     > the proper Pyxie database, with a calendar
                     > selection interface and all that.
Add elevation graph
Cleaned up the conventions significantly.
Add TreeView to browse filesystem for GPX files on left.
x
remove old stats methods