browse example: rename selected to flagged to avoid confusion, remove dead code
browse example: rename selected to flagged to avoid confusion, remove dead code

westurner/urwid,mountainstorm/urwid,foreni-packages/urwid,foreni-packages/urwid,urwid/urwid,harlowja/urwid,Julian/urwid,douglas-larocca/urwid,westurner/urwid,foreni-packages/urwid,zyga/urwid,tonycpsu/urwid,bk2204/urwid,hkoof/urwid,urwid/urwid,hkoof/urwid,westurner/urwid,urwid/urwid,inducer/urwid,ivanov/urwid,drestebon/urwid,rndusr/urwid,drestebon/urwid,tonycpsu/urwid,mountainstorm/urwid,wardi/urwid,zyga/urwid,wardi/urwid,tonycpsu/urwid,ivanov/urwid,drestebon/urwid,ivanov/urwid,bk2204/urwid,Julian/urwid,douglas-larocca/urwid,harlowja/urwid,douglas-larocca/urwid,zyga/urwid,rndusr/urwid,Julian/urwid,rndusr/urwid,hkoof/urwid,inducer/urwid,wardi/urwid,inducer/urwid,harlowja/urwid,bk2204/urwid,mountainstorm/urwid