Auto merge of #2468 - TheNeikos:add-warning_if_no_browser, r=alexcrichton
authorbors <bors@rust-lang.org>
Mon, 14 Mar 2016 17:08:12 +0000 (10:08 -0700)
committerbors <bors@rust-lang.org>
Mon, 14 Mar 2016 17:08:12 +0000 (10:08 -0700)
Add warning if no browser

Closes #2371

I am unsure if `println!` is the correct way to print warnings at this stage, since it is not a hard error thus returning `Err` seems a bit too strong.


Trivial merge