urlselect: rewrote config and tidy up some globals
urlselect: add option to show nickname
urlselect: no need to hook /input return

seriously, wth was i thinking when i wrote that? we already bound
ctrl-M, no need to double bind enter key again.
urlselect: always use input bar for prompt

we always use input bar for prompt now. when url selection started,
script will grab the original contents of input bar and then replaced
them with "urlselect,input_text". when selection ends, the input bar
will be restored to its original contents.
Merge branch 'autobar'
urlselect: readme++