Merge pull request #1410 from wutschel/update_remote_images

Improvement: Update remote buttons to use new icon set and higher resolution
Improvement: Align remote toolbar and volume icons with common icon color

Author: kambala-decapitator

XBMC Remote/Images.xcassets/icons/icon_circle.imageset/Contents.json

@@ -5,11 +5,11 @@
       "scale" : "1x"
     },
     {
-      "filename" : "remote_button_blank_up@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
+      "filename" : "crosshair@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }

XBMC Remote/Images.xcassets/icons/icon_circle.imageset/icon_circle@2x.png

@@ -5,11 +5,11 @@
       "scale" : "1x"
     },
     {
-      "filename" : "remote_button_audio_down@2x.png",
       "idiom" : "universal",
       "scale" : "2x"
     },
     {
+      "filename" : "remote_button_audio_down@3x.png",
       "idiom" : "universal",
       "scale" : "3x"
     }