Add bin into gitignore
Add bin into gitignore

Change-Id: I60630ae8d8ba5e5515e83b9638b3c263f533aeba

sergiobanegas/kurento-room,sergiobanegas/kurento-room,sergiobanegas/kurento-room,sergiobanegas/kurento-room,sergiobanegas/kurento-room,AntimatterResearch/kurento-room,AntimatterResearch/kurento-room,AntimatterResearch/kurento-room,AntimatterResearch/kurento-room