"remote_url" and "remote_browser" parameters for "./go test_remote".

E.g.
./go test_remote remote_url=http://1.2.3.4:1234/wd/hub remote_browser=ie

I found no way to make this work without a change.
Including
./go test_foo jvmargs="-Da=a -Db=b"
which doesn't set both properties a=a and b=b and doesn't work at all: a space in jvmargs messes everything up.

Signed-off-by: Jason Leyba <jmleyba@gmail.com>

rake-tasks/crazy_fun/mappings/java.rb

@@ -525,6 +525,14 @@ def handle(fun, dir, args)
                 ant.sysproperty :key => 'webdriver.firefox.bin', :value => firefox
               end
 
+              if remote_url
+                ant.sysproperty :key => 'selenium.external.serverUrl', :value => remote_url
+                ant.sysproperty :key => 'selenium.browser.remote', :value => 'true'
+                if remote_browser
+                  ant.sysproperty :key => 'selenium.browser', :value => remote_browser
+                end
+              end
+
               if marionette?
                 ant.sysproperty :key => 'webdriver.firefox.marionette', :value => 'true'
               end
@@ -616,6 +624,14 @@ def firefox
       return ENV['firefox']
     end
 
+    def remote_url
+      return ENV['remote_url']
+    end
+
+    def remote_browser
+      return ENV['remote_browser']
+    end
+
     def jvm_args
       return ENV['jvmargs']
     end