modified .gitignore to include testbed
modified .gitignore to include testbed

bricesanchez/surveyor_gui,kjayma/surveyor_gui,bricesanchez/surveyor_gui,wested/surveyor_gui,GirishBhagavath/survey_gui,kjayma/surveyor_gui,weedySeaDragon/surveyor_gui,wested/surveyor_gui,bricesanchez/surveyor_gui,GirishBhagavath/survey_gui,weedySeaDragon/surveyor_gui,weedySeaDragon/surveyor_gui,wested/surveyor_gui,kjayma/surveyor_gui