Different strokes for different folks: diversifying sightstone itemization

How about we add a couple different sightstones to make better itemization for AP supports and for various junglers.

Current sightstone --> renamed to red sightstone (and icon altered accordingly)

New items:

• Blue Sightstone
  • 2 x Faerie Charm + 400g (total 760g)
  • Unique ward refresh (as current Sightstone), +6 Mp5
• Sapphire Sightstone
  • Blue Sightstone + 2x Faerie Charm +400g (total 1520g)
  • Unique ward refresh (as Ruby Sightstone), + 16 Mp5
• Green Sightstone
  • Longsword + 400g (total 760g)
  • Unique ward refresh (as current Sightstone), +10 AD
• Emerald Sightstone
  • Green Sightstone + Longsword +400g (total 1520g)
  • Unique ward refresh (as Ruby Sightstone), + 25 AD

Thoughts?