Add mongo service to travis
Add mongo service to travis

rom-rb/rom,cored/rom,endash/rom,pvcarrera/rom,jeremyf/rom,kwando/rom,pxlpnk/rom,rom-rb/rom,dcarral/rom,dekz/rom,vrish88/rom,rom-rb/rom,Snuff/rom,denyago/rom,pdswan/rom