Fix test statement in uzbl-browser startup script
Fixed installation of bin/uzbl-browser
Remove docs for uri-as-argument
Document that --uri is now required for URI loads
Cast the return value
Clean up uzbl.1
Merge remote-tracking branch 'gh/nmeum/next' into mathstuf/next

* gh/nmeum/next:
  Fixed installation of bin/uzbl-browser
  Fix test statement in uzbl-browser startup script