added associated file types (pd, pdz, rjz, zip) and Open in PdParty support; status bar text is now light on iOS7
zip files can now be unzipped in the browser, closes #20
added prelim app icon; copying default folder now copies subfolders, so existing user subfolders won't be removed, nwo show progress hud when copying; fixed some layout issues on iOS7
added rjdj scene info view, half of #26; fixed wrong button size on iOS6