UTF-8 urls cannot be launched

[copiousfreetime]

Found while investigating #31

A UTF-8 url passed on the command line fails to open.

http://ja.wikipedia.org/wiki/あ

LAUNCHY_DEBUG: Launchy : Failure in opening http://ja.wikipedia.org/wiki/あ with options {}: bad URI(is not URI?): http://ja.wikipedia.org/wiki/あ
LAUNCHY_DEBUG: /Users/jeremy/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/uri/common.rb:436:in `split'
LAUNCHY_DEBUG: /Users/jeremy/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/uri/common.rb:485:in `parse'
LAUNCHY_DEBUG: ./lib/launchy.rb:28:in `open'
LAUNCHY_DEBUG: ./lib/launchy/cli.rb:72:in `good_run'
LAUNCHY_DEBUG: ./lib/launchy/cli.rb:80:in `run'
LAUNCHY_DEBUG: bin/launchy:4
Failure in opening http://ja.wikipedia.org/wiki/あ with options {}: bad URI(is not URI?): http://ja.wikipedia.org/wiki/あ

[copiousfreetime]

fixed with commit a568f89