Updated observe to use adapter.
Updated observe to use adapter.

git-svn-id: 5a78cce7c2e39a9d00ac76533fc3e91041161a4f@229 4daae283-1d46-0410-8e0a-abc221dbbbb9

alanponce/Flotr2,beastlike/Flotr2,RobertoMalatesta/Flotr2,alanponce/Flotr2,jessiejea/Flotr2,jessiejea/Flotr2,beastlike/Flotr2,jessiejea/Flotr2,HumbleSoftware/Flotr2,beastlike/Flotr2,HumbleSoftware/Flotr2,nicgallardo/Flotr2,RobertoMalatesta/Flotr2,nicgallardo/Flotr2,alanponce/Flotr2