relax rule: allow "it" and "describe" globals for mocha
relax rule: allow "it" and "describe" globals for mocha

For #9

icemobilelab/icemobile-standard,kublaj/standard,yamafaktory/standard,driftyco/standard,tk120404/standard,uber/standard,Eruant/standard,stevemao/standard,medseek-engineering/standard,JedWatson/happiness,bradparks/standard,TheLady/standard,matthieuprat/standard,xjamundx/standard,febeling/standard,jasonpincin/standard,standard/standard,yudiutomo/standard,LinusU/standard,cesarandreu/standard,watson/standard-engine,leecade/standard,pombredanne/standard-1,ricardofbarros/standard,jden/jsw,LinusU/standard,reggi/standard,John-Lin/standard,mattdesl/standard,mightyiam/standard,ricardofbarros/standard-engine,mnquintana/standard,feross/standard,salespreso/standard,LinusU/standard-engine,feross/standard,JedWatson/happiness,Flet/standard,koddsson/standard,keis/standard,maxogden/standard,beni55/standard,Flet/standard-engine,timbl/standard,tjwudi/standard,SimenB/standard,bengl/standard,SimenB/standard,Holowaychitos/standard,yoshuawuyts/standard,standard/standard