Targets OSX 10.8, which RubyMotion doesn't seem to support anymore

[bbugh]

Hi, I've just started with RubyMotion and thus have no idea what I'm doing, but I used this template (thanks!) to test out a menu bar idea. When I first set up the gem and run rake, I get this error:

» rake
    ERROR! Deployment target 10.8 is not supported by this version of RubyMotion

Removing the deployment_target from the Rakefile made it build fine, though I don't know the repercussions of it. This line is not in the default RubyMotion Rakefile that is generate with --template osx, so I'm assuming that it's a-ok...?

diff --git a/Rakefile b/Rakefile
index 3af04bb..d9e4827 100644
--- a/Rakefile
+++ b/Rakefile
@@ -12,5 +12,4 @@ Motion::Project::App.setup do |app|
   # Use `rake config' to see complete project settings.
   app.name = 'MenubarTest02'
   app.info_plist['LSUIElement'] = true
-  app.deployment_target = '10.8'
 end