missing .gitgnore

[pavel-pimenov]

git clone and make:(Ubuntu 10.04) (#305)

~/src/1/fossa$ git status
On branch master
Untracked files:
(use "git add ..." to include in what will be committed)

   examples/captive_dns_server/captive_dns_server
   examples/coap_client/coap_client
   examples/coap_server/coap_server
   examples/http_client/http_client
   examples/json_rpc_server/json_rpc_server
   examples/mqtt_broker/mqtt_broker
   examples/mqtt_client/mqtt_client
   examples/netcat/nc
   examples/publish_subscribe/publish_subscribe
   test/unit_test

nothing added to commit but untracked files present (use "git add" to track)