Fogflow southbound

[tejinderkhattra]

Updated Southbound code to remove the "command" header in UpdateContext Request.

[showersky]

Hi Tejinder,
Did you combine the latest version with your change? It seems that different people from your side are using different version of go. Also, since golint will automatically replace spaces with tab, I saw many of your committed changes do not introduce real code changes, but rather a replace between tab and spaces. Could you fix this and then pull another request?

[tejinderkhattra]

Hi Bin,
I have replaced spaces with tabs and also synced this branch with master.