Adding .gitignore.
Adding .gitignore.

ihsanudin/examples,gingerwizard/examples,elastic/examples,elastic/examples,nosun/examples,elastic/demo,ycombinator/examples,ycombinator/examples,gingerwizard/examples,elastic/examples,gingerwizard/examples,gingerwizard/examples,gingerwizard/examples,elastic/examples,debadair/examples,gingerwizard/examples,debadair/examples,ycombinator/examples,debadair/examples,elastic/examples,nosun/examples,nosun/examples,elastic/demo,ihsanudin/examples,elastic/examples,elastic/examples,gingerwizard/examples,elastic/demo,ihsanudin/examples