.location_rel now returns a fraction

Fix #76

px_to_window_rel returns a string fraction

Author: bootstraponline

lib/appium_lib/common/helper.rb

@@ -223,8 +223,8 @@ def px_to_window_rel opts={}
     x = opts.fetch :x, 0
     y = opts.fetch :y, 0
 
-    OpenStruct.new( x: x.to_f / w.width.to_f,
-                    y: y.to_f / w.height.to_f )
+    OpenStruct.new( x: "#{x.to_f} / #{w.width.to_f}",
+                    y: "#{y.to_f} / #{w.height.to_f}" )
   end
 
   def lazy_load_strings

lib/appium_lib/common/patch.rb

@@ -58,8 +58,8 @@ def tag_name
     def location_rel
       xy = self.location
       w = $driver.window_size
-      OpenStruct.new( x: xy.x.to_f / w.width.to_f,
-                      y: xy.y.to_f / w.height.to_f )
+      OpenStruct.new( x: "#{xy.x.to_f} / #{w.width.to_f}",
+                      y: "#{xy.y.to_f} / #{w.height.to_f}" )
     end
   end
 end # module Appium::Common